cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Measurement Error Mitigation via Truncated Neumann Series
Creators: name: Wang, Kun
name: Chen, Yu-Ao
name: Wang, Xin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Measurements on near-term quantum processors are inevitably subject to hardware imperfections that lead to readout errors. Mitigation of such unavoidable errors is crucial to better explore and extend the power of near-term quantum hardware. In this work, we propose a method to mitigate measurement errors in computing quantum expectation values using the truncated Neumann series. The essential idea is to cancel the errors by combining various noisy expectation values generated by sequential measurements determined by terms in the truncated series. We numerically test this method and find that the computation accuracy is substantially improved. Our method possesses several advantages: it does not assume any noise structure, it does not require the calibration procedure to learn the noise matrix a prior, and most importantly, the incurred error mitigation overhead is independent of system size, as long as the noise resistance of the measurement device is moderate. All these advantages empower our method as a practical measurement error mitigation method for near-term quantum devices.
description: 11 pages, 6 figures, comments are welcome
Letter from J. M. Cobban to John Betjeman, November 02, 1959
Creators: name: Cobban, J. M. (James Macdonald)
Publisher: name: University of Victoria Libraries
Year: 2023
Subjects: subject: Poets
valueUri: http://id.worldcat.org/fast/1067778
subject: Betjeman, John, 1906-1984
valueUri: http://id.worldcat.org/fast/1427507
subject: Cobban, J. M. (James Macdonald)
subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945
subject: Authors, English--Correspondence
valueUri: http://id.worldcat.org/fast/821953
subject: Modernism (Literature)
valueUri: http://id.worldcat.org/fast/1024455
subject: Television journalists
valueUri: http://id.worldcat.org/fast/1146949
subject: Literature, Modern
valueUri: http://id.worldcat.org/fast/1000172
subject: Authors
valueUri: http://id.worldcat.org/fast/821688
subject: Poets, English
valueUri: http://id.worldcat.org/fast/1067870

description: Correspondence between John Betjeman and J. M. Cobban. Cobban writes to Betjeman about bus service to Abingdon School. He has complained to the company about improving bus frequency, but that is not a priority for them.
Relativistic reverberation in the accretion flow of a tidal disruption event
Creators: name: Kara, Erin
name: Miller, Jon M.
name: Reynolds, Chris
name: Dai, Lixin
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Our current understanding of the curved space-time around supermassive black holes is based on actively accreting black holes, which make up only ten per cent or less of the overall population. X-ray observations of that small fraction reveal strong gravitational redshifts that indicate that many of these black holes are rapidly rotating; however, selection biases suggest that these results are not necessarily reflective of the majority of black holes in the Universe. Tidal disruption events, where a star orbiting an otherwise dormant black hole gets tidally shredded and accreted onto the black hole, can provide a short, unbiased glimpse at the space-time around the other ninety per cent of black holes. Observations of tidal disruptions have hitherto revealed the formation of an accretion disk and the onset of an accretion-powered jet, but have failed to reveal emission from the inner accretion flow, which enables the measurement of black hole spin. Here we report observations of reverberation arising from gravitationally redshifted iron K photons reflected off the inner accretion flow in the tidal disruption event Swift J1644+57. From the reverberation timescale, we estimate the mass of the black hole to be a few million solar masses, suggesting an accretion rate of 100 times the Eddington limit or more. The detection of reverberation from the relativistic depths of this rare super-Eddington event demonstrates that the X-rays do not arise from the relativistically moving regions of a jet, as previously thought.
description: Published in the 22 June 2016 issue of Nature
A survey of numerical methods for hemivariational inequalities with applications to Contact Mechanics
Creators: name: Ochal, Anna
name: Jureczka, Michal
name: Bartman, Piotr
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optimization and Control (math.OC)
subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 35Q74, 49J40, 65K10, 65M60, 74S05, 74M15, 74M10, 74G15

description: In this paper we present an abstract nonsmooth optimization problem for which we recall existence and uniqueness results. We show a numerical scheme to approximate its solution. The theory is later applied to a sample static contact problem describing an elastic body in frictional contact with a foundation. This problem leads to a hemivariational inequality which we solve numerically. Finally, we compare three computational methods of solving contact mechanical problems: direct optimization method, augmented Lagrangian method and primal-dual active set strategy.
description: 21 pages, 5 figures. arXiv admin note: text overlap with arXiv:1903.04241
KnowPrompt: Knowledge-aware Prompt-tuning with Synergistic Optimization for Relation Extraction
Creators: name: Chen, Xiang
name: Zhang, Ningyu
name: Xie, Xin
name: Deng, Shumin
name: Yao, Yunzhi
name: Tan, Chuanqi
name: Huang, Fei
name: Si, Luo
name: Chen, Huajun
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation and Language (cs.CL)
subject: Artificial Intelligence (cs.AI)
subject: Information Retrieval (cs.IR)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Recently, prompt-tuning has achieved promising results for specific few-shot classification tasks. The core idea of prompt-tuning is to insert text pieces (i.e., templates) into the input and transform a classification task into a masked language modeling problem. However, for relation extraction, determining an appropriate prompt template requires domain expertise, and it is cumbersome and time-consuming to obtain a suitable label word. Furthermore, there exists abundant semantic and prior knowledge among the relation labels that cannot be ignored. To this end, we focus on incorporating knowledge among relation labels into prompt-tuning for relation extraction and propose a Knowledge-aware Prompt-tuning approach with synergistic optimization (KnowPrompt). Specifically, we inject latent knowledge contained in relation labels into prompt construction with learnable virtual type words and answer words. Then, we synergistically optimize their representation with structured constraints. Extensive experimental results on five datasets with standard and low-resource settings demonstrate the effectiveness of our approach. Our code and datasets are available in https://github.com/zjunlp/KnowPrompt for reproducibility.
description: Accepted by WWW2022
Letter from Heather Cripps to John Betjeman, December 21, 1971
Creators: name: Betjeman, John, 1906-1984
name: Cripps, Heather
Publisher: name: University of Victoria Libraries
Year: 2023
Subjects: subject: Television journalists
valueUri: http://id.worldcat.org/fast/1146949
subject: Modernism (Literature)
valueUri: http://id.worldcat.org/fast/1024455
subject: Authors, English--Correspondence
valueUri: http://id.worldcat.org/fast/821953
subject: Poets, English
valueUri: http://id.worldcat.org/fast/1067870
subject: Poets
valueUri: http://id.worldcat.org/fast/1067778
subject: Cripps, Heather
subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945
subject: Betjeman, John, 1906-1984
valueUri: http://id.worldcat.org/fast/1427507
subject: Authors
valueUri: http://id.worldcat.org/fast/821688
subject: Literature, Modern
valueUri: http://id.worldcat.org/fast/1000172

description: Correspondence between John Betjeman and Heather Cripps. Cripps asks Betjeman if he would be available to address the Abingdon Conservative Club at one of their meetings. Also enclosed is Betjeman's reply (January 03, 1972): Betjeman replies to decline the invitation, saying that he tries not to speak to clubs with political affiliations. Due to working with different political parties, he feels that it is essential to remain as neutral as possible.
Clumpy high-z galaxies as a testbed for feedback-regulated galaxy formation
Creators: name: Mayer, Lucio
name: Tamburello, Valentina
name: Lupi, Alessandro
name: Keller, Ben
name: Wadsley, James
name: Madau, Piero
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We study the dependence of fragmentation in massive gas-rich galaxy disks at $z > 1$ on feedback model and hydrodynamical method, employing the GASOLINE2 SPH code and the lagrangian mesh-less code GIZMO in finite mass mode. We compare non-cosmological galaxy disk runs with standard blastwave supernovae (SN)feedback, which introduces delayed cooling in order to drive winds, and runs with the new superbubble SN feedback, which produces winds naturally by modelling the detailed physics of SN-driven bubbles and leads to efficient self-regulation of star formation. We find that, with blastwave feedback, massive star forming clumps form in comparable number and with very similar masses in GASOLINE2 and GIZMO. The typical masses are in the range $10^7-10^8 M_{\odot}$, lower than in most previous works, while giant clumps with masses above $10^9 M_{\odot}$ are exceedingly rare. With superbubble feedback, instead, massive bound star forming clumps do not form because galaxies never undergo a phase of violent disk instability. Only sporadic, unbound star forming overdensities lasting only a few tens of Myr can arise that are triggered by perturbations of massive satellite companions. We conclude that there is a severe tension between explaining massive star forming clumps observed at $z > 1$ primarily as the result of disk fragmentation driven by gravitational instability and the prevailing view of feedback-regulated galaxy formation. The link between disk stability and star formation efficiency should thus be regarded as a key testing ground for galaxy formation theory.
description: submitted to ApJ Letters, comments welcome
Minimal microscopic model for liquid polyamorphism and water-like anomalies
Creators: name: Caupin, Frédéric
name: Anisimov, Mikhaïl A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Liquid polyamorphism is the intriguing possibility for a single component substance to exist in multiple liquid phases. We propose a minimal model for this phenomenon. Starting with a binary lattice model with critical azeotropy and liquid-liquid demixing, we allow interconversion of the two species, turning the system into a single-component fluid with two states differing in energy and entropy. Unveiling the phase diagram of the non-interconverting binary mixture gives unprecedented insight on the phase behaviors accessible to the interconverting fluid, such as a liquid-liquid transition with a critical point, or a singularity-free scenario, exhibiting thermodynamic anomalies without polyamorphism. The model provides a unified theoretical framework to describe supercooled water and a variety of polyamorphic liquids with water-like anomalies.
description: 15 pages, 11 figures
Plan for Communication, Dissemination and Exploitation of Project Results (PEDR)
Creators: name: Resch, Susanne
name: Haupt, Barbara
name: Jagersbacher-Uhl, Simone
name: Jung-Waclik, Sabine
name: Ahern, Caitlin
Publisher: name: Zenodo
Year: 2022
Subjects: PEDR
H2020
Communication & Dissemination

description: The DIAGONAL PEDR is part of Task 7.4 on “Communication and Dissemination”. The aim of this Task is to plan, monitor and implement all project’s communication and dissemination activities as well as scientific publications. All Consortium partners contribute to this task. BNN as Task 7.4 leader coordinates the overall activities and will evaluate and optimize the project’s dissemination performance on regular basis. Internal updates and evaluations on the PEDR are planned for M18, M36 and M42. The PEDR summarizes the strategy and concrete actions that the DIAGONAL Consortium will follow in order to communicate, disseminate and exploit the project and its results, aiming to help maximize the impact of the project. The communication plan is integrated in the PEDR to increase the reciprocal impacts.
Optimal Pose and Shape Estimation for Category-level 3D Object Perception
Creators: name: Shi, Jingnan
name: Yang, Heng
name: Carlone, Luca
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: We consider a category-level perception problem, where one is given 3D sensor data picturing an object of a given category (e.g. a car), and has to reconstruct the pose and shape of the object despite intra-class variability (i.e. different car models have different shapes). We consider an active shape model, where -- for an object category -- we are given a library of potential CAD models describing objects in that category, and we adopt a standard formulation where pose and shape estimation are formulated as a non-convex optimization. Our first contribution is to provide the first certifiably optimal solver for pose and shape estimation. In particular, we show that rotation estimation can be decoupled from the estimation of the object translation and shape, and we demonstrate that (i) the optimal object rotation can be computed via a tight (small-size) semidefinite relaxation, and (ii) the translation and shape parameters can be computed in closed-form given the rotation. Our second contribution is to add an outlier rejection layer to our solver, hence making it robust to a large number of misdetections. Towards this goal, we wrap our optimal solver in a robust estimation scheme based on graduated non-convexity. To further enhance robustness to outliers, we also develop the first graph-theoretic formulation to prune outliers in category-level perception, which removes outliers via convex hull and maximum clique computations; the resulting approach is robust to 70%-90% outliers. Our third contribution is an extensive experimental evaluation. Besides providing an ablation study on a simulated dataset and on the PASCAL3D+ dataset, we combine our solver with a deep-learned keypoint detector, and show that the resulting approach improves over the state of the art in vehicle pose estimation in the ApolloScape datasets.
Quantum optimization within lattice gauge theory model on a quantum simulator
Creators: name: Yan, Zheng
name: Zhou, Zheng
name: Zhou, Yan-Hua
name: Wang, Yan-Cheng
name: Qiu, Xingze
name: Meng, Zi Yang
name: Zhang, Xue-Feng
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Simulating lattice gauge theory (LGT) Hamiltonian and its nontrivial states by programmable quantum devices has attracted numerous attention in recent years. Rydberg atom arrays constitute one of the most rapidly developing arenas for quantum simulation and quantum computing. The $\mathbb{Z}_2$ LGT and topological order has been realized in experiments while the $U(1)$ LGT is being worked hard on the way. States of LGT have local constraint and are fragmented into several winding sectors with topological protection. It is therefore difficult to reach the ground state in target sector for experiments, and it is also an important task for quantum topological memory. Here, we propose a protocol of sweeping quantum annealing (SQA) for searching the ground state among topological sectors. With the quantum Monte Carlo method, we show that this SQA has linear time complexity of size with applications to the antiferromagnetic transverse field Ising model, which has emergent $U(1)$ gauge fields. This SQA protocol can be realized easily on quantum simulation platforms such as Rydberg array and D-wave annealer. We expect this approach would provide an efficient recipe for resolving the topological hindrances in quantum optimization and the preparation of quantum topological state.
Whitney stratifications are conically smooth
Creators: name: Nocera, Guglielmo
name: Volpe, Marco
Publisher: name: arXiv
Year: 2021
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 57N80, 58A35, 57P05

description: The notion of conically smooth structure on a stratified space was introduced by Ayala, Francis and Tanaka. This is a very well behaved analogue of a differential structure in the context of stratified topological spaces, satisfying good properties such as the existence of resolutions of singularities and handlebody decompositions. In this paper we prove Ayala, Francis and Tanaka's conjecture that any Whitney stratified space admits a canonical conically smooth structure. We thus establish a connection between the theory of conically smooth spaces and the classical examples of stratified spaces from differential topology.
description: 20 pages. Revised for publication
Letter from Gregory Tuck to John Betjeman, October 07, 1978
Creators: name: Tuck, Gregory
Publisher: name: University of Victoria Libraries
Year: 2023
Subjects: subject: Poets
valueUri: http://id.worldcat.org/fast/1067778
subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945
subject: Literature, Modern
valueUri: http://id.worldcat.org/fast/1000172
subject: Poets, English
valueUri: http://id.worldcat.org/fast/1067870
subject: Authors
valueUri: http://id.worldcat.org/fast/821688
subject: Television journalists
valueUri: http://id.worldcat.org/fast/1146949
subject: Tuck, Gregory
subject: Modernism (Literature)
valueUri: http://id.worldcat.org/fast/1024455
subject: Betjeman, John, 1906-1984
valueUri: http://id.worldcat.org/fast/1427507
subject: Authors, English--Correspondence
valueUri: http://id.worldcat.org/fast/821953

description: Correspondence between John Betjeman and Gregory Tuck. Tuck asks Betjeman if he would consider becoming the Chancellor at the Academy of Private Tuition.
Atmosphere-interior exchange on hot rocky exoplanets
Creators: name: Kite, Edwin S.
name: Fegley, Bruce
name: Schaefer, Laura
name: Gaidos, Eric
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We provide estimates of atmospheric pressure and surface composition on short-period rocky exoplanets with dayside magma pools and silicate vapor atmospheres. Atmospheric pressure tends toward vapor-pressure equilibrium with surface magma, and magma-surface composition is set by the competing effects of fractional vaporization and surface-interior exchange. We use basic models to show how surface-interior exchange is controlled by the planet's temperature, mass, and initial composition. We assume that mantle rock undergoes bulk melting to form the magma pool, and that winds flow radially away from the substellar point. With these assumptions, we find that: (1) atmosphere-interior exchange is fast when the planet's bulk-silicate FeO concentration is low, and slow when FeO concentration is high; (2) magma pools are compositionally well-mixed for substellar temperatures $\lesssim$ 2400 K, but compositionally variegated and rapidly variable for substellar temperatures $\gtrsim$ 2400 K; (3) currents within the magma pool tend to cool the top of the solid mantle ("tectonic refrigeration"); (4) contrary to earlier work, many magma planets have time-variable surface compositions.
description: Accepted for publication by ApJ, 21 pages, 19 figures
On the exponential stability of Beck's Problem on a star-shaped graph
Creators: name: Mahinzaeim, Mahyar
name: Xu, Gen Qi
name: Zhang, Hai E
Publisher: name: arXiv
Year: 2021
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 37L15, 93D23, 34B45, 35P10, 47B06

description: We deal with the as yet unresolved exponential stability problem for Beck's Problem on a metric star graph with three identical edges. The edges are stretched Euler--Bernoulli beams which are simply supported with respect to the outer vertices. At the inner vertex we have viscoelastic damping acting on the slopes of the edges. We carry out a complete spectral analysis of the system operator associated with the abstract spectral problem in Hilbert space. Within this framework it is shown that the eigenvectors have the property of forming a Riesz (i.e.\ an unconditional) basis, which makes it possible to directly deduce the exponential stability of the corresponding $C_0$-semigroup using spectral information for the system operator alone. A physically interesting conclusion is that the particular choice of vertex conditions ensures the exponential stability even when the elasticity acting on the slopes of the edges is absent.
description: to be published in Journal of Differential Equations
title: Opuntia sp. (I.R.H.Telford, 1984)
title: Version 1
titleType: Subtitle
Creators: name: I.R.H.Telford
Publisher: name: Flora of Australia
Year: 2020
Subjects: Opuntia sp. (I.R.H.Telford, 1984)

description: Taxonomic treatment for Opuntia sp. (I.R.H.Telford, 1984)
Subgroup Fairness in Two-Sided Markets
Creators: name: Zhou, Quan
name: Marecek, Jakub
name: Shorten, Robert N.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Computer Science and Game Theory (cs.GT)
subject: Machine Learning (cs.LG)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: It is well known that two-sided markets are unfair in a number of ways. For instance, female workers at Uber earn less than their male colleagues per mile driven. Similar observations have been made for other minority subgroups in other two-sided markets. Here, we suggest a novel market-clearing mechanism for two-sided markets, which promotes equalisation of the pay per hour worked across multiple subgroups, as well as within each subgroup. In the process, we introduce a novel notion of subgroup fairness (which we call Inter-fairness), which can be combined with other notions of fairness within each subgroup (called Intra-fairness), and the utility for the customers (Customer-Care) in the objective of the market-clearing problem. While the novel non-linear terms in the objective complicate market clearing by making the problem non-convex, we show that a certain non-convex augmented Lagrangian relaxation can be approximated to any precision in time polynomial in the number of market participants using semi-definite programming. This makes it possible to implement the market-clearing mechanism efficiently. On the example of driver-ride assignment in an Uber-like system, we demonstrate the efficacy and scalability of the approach, and trade-offs between Inter- and Intra-fairness.
Model of metameric locomotion in active directional filaments
Creators: name: Du, Guangle
name: Kumari, Sunita
name: Ye, Fangfu
name: Podgornik, Rudolf
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Locomotion in segmented animals, such as annelids and myriapods (centipedes and millipedes), is generated by a coordinated movement known as metameric locomotion, which can be also implemented in robots designed to perform specific tasks. We introduce a theoretical model, based on an active directional motion of the head segment and a passive trailing of the rest of the body segments, in order to formalize and study the metameric locomotion. The model is specifically formulated as a steered Ornstein-Uhlenbeck curvature process, preserving the continuity of the curvature along the whole body filament, and thus supersedes the simple active Brownian model, which would be inapplicable in this case. We obtain the probability density by analytically solving the Fokker-Planck equation pertinent to the model. We also calculate explicitly the correlators, such as the mean-square orientational fluctuations, the orientational correlation function and the mean-square separation between the head and tail segments, both analytically either via the Fokker-Planck equation or directly by either solving analytically or implementing it numerically from the Langevin equations. The analytical and numerical results coincide. Our theoretical model can help understand the locomotion of metameric animals and instruct the design of metameric robots.
description: 11 pages, 4 figures
Fractional quantum Hall effect in strained graphene: stability of Laughlin states in disordered (pseudo)magnetic fields
Creators: name: Bagrov, Andrey A.
name: Principi, Alessandro
name: Katsnelson, Mikhail I.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We address the question of the stability of the (fractional) quantum Hall effect (QHE) in presence of pseudomagnetic disorder generated by mechanical deformations of a graphene sheet. Neglecting the potential disorder and taking into account only strain-induced random pseudomagnetic fields, it is possible to write down a Laughlin-like trial ground-state wave function explicitly. Exploiting the Laughlin plasma analogy, we demonstrate that in the case of fluctuating pseudomagnetic fluxes of relatively small amplitude both the integer and fractional quantum Hall effects are always stable upon the deformations. By contrast, in the case of bubble-induced pseudomagnetic fields in graphene on a substrate (a small number of large fluxes) the disorder can be strong enough to cause a glass transition in the corresponding classical Coulomb plasma, resulting in the destruction of fractional quantum Hall regime and in a quantum phase transition to a non-ergodic state of the lowest Landau level.
description: 8 pages, 6 figures
Riemannian maps whose base manifolds admit a Ricci soliton
Creators: name: Yadav, Akhilesh
name: Meena, Kiran
Publisher: name: arXiv
Year: 2021
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53B20, 53C25, 53C43

description: In this paper, we study Riemannian maps whose base manifolds admit a Ricci soliton and give a non-trivial example of such a Riemannian map. First, we find Riemannian curvature tensor for the base manifolds of Riemannian map $F$. Further, we obtain the Ricci tensor and calculate the scalar curvature of the base manifold. Moreover, we obtain necessary conditions for the leaves of $rangeF_\ast$ to be Ricci soliton, almost Ricci soliton, and Einstein. We also obtain necessary conditions for the leaves of $(rangeF_\ast)^\bot$ to be Ricci soliton and Einstein. Also, we calculate the scalar curvatures of $rangeF_\ast$ and $(rangeF_\ast)^\bot$ by using Ricci soliton. Finally, we study the harmonicity and biharmonicity of such a Riemannian map. We obtain a necessary and sufficient condition for such a Riemannian map between Riemannian manifolds to be harmonic. We also obtain necessary and sufficient conditions for a Riemannian map from a Riemannian manifold to a space form that admits Ricci soliton to be harmonic and biharmonic.
NSF Final Outcomes Report: Using the Lived Experiences and Narratives of Black Heritage and African American Gullah/Geechee to Learn Science Concepts
Creators: name: Quinlan, Catherine
Publisher: name: QUBES Educational Resources
Year: 2023

description: This resource is a public report that provides final outcomes from the NSF funded project award # 1928832. The resources included in this report are outcomes from the catalyst project titled: Creating and Evaluating a Culturally Representative STEM Curriculum Supported by Next Generation Science Standards. Others will be shared in this research lab space over time.
Neutrino mass from M Theory SO(10)
Creators: name: Acharya, Bobby S.
name: Bozek, Krzysztof
name: Romão, Miguel Crispim
name: King, Stephen F.
name: Pongkitivanichkul, Chakrit
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the origin of neutrino mass from $SO(10)$ arising from $M$ Theory compactified on a $G_2$-manifold. This is linked to the problem of the breaking of the extra $U(1)$ gauge group, in the $SU(5)\times U(1)$ subgroup of $SO(10)$, which we show can achieved via a (generalised) Kolda-Martin mechanism. The resulting neutrino masses arise from a combination of the seesaw mechanism and induced R-parity breaking contributions. The rather complicated neutrino mass matrix is analysed for one neutrino family and it is shown how phenomenologically acceptable neutrino masses can emerge.
description: 32 pages, 12 figures
Clairaut Riemannian maps
Creators: name: Meena, Kiran
name: Yadav, Akhilesh
Publisher: name: arXiv
Year: 2021
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53B20, 53B35, 53C25

description: In this paper, first we define Clairaut Riemannian map between Riemannian manifolds by using a geodesic curve on the base space and find necessary and sufficient conditions for a Riemannian map to be Clairaut with a non-trivial example. We also obtain necessary and sufficient condition for a Clairaut Riemannian map to be harmonic. Thereafter, we study Clairaut Riemannian map from Riemannian manifold to Ricci soliton with a non-trivial example. We obtain scalar curvatures of $rangeF_\ast$ and $(rangeF_\ast)^\bot$ by using Ricci soliton. Further, we obtain necessary conditions for the leaves of $rangeF_\ast$ to be almost Ricci soliton and Einstein. We also obtain necessary condition for the vector field $\dotβ$ to be conformal on $rangeF_\ast$ and necessary and sufficient condition for the vector field $\dotβ$ to be Killing on $(rangeF_\ast)^\bot$, where $β$ is a geodesic curve on the base space of Clairaut Riemannian map. Also, we obtain necessary condition for the mean curvature vector field of $rangeF_\ast$ to be constant. Finally, we introduce Clairaut anti-invariant Riemannian map from Riemannian manifold to Kähler manifold, and obtain necessary and sufficient condition for an anti-invariant Riemannian map to be Clairaut with a non-trivial example. Further, we find necessary condition for $rangeF_\ast$ to be minimal and totally geodesic. We also obtain necessary and sufficient condition for Clairaut anti-invariant Riemannian maps to be harmonic.
description: 22 pages. arXiv admin note: text overlap with arXiv:2107.01049
Is this a real story? : young children's concept of the reality-status of stories and pictures
Creators: name: Lowe, Virginia
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the Reference field.
Search for Cosmic Particles with the Moon and LOFAR
Creators: name: Winchen, T.
name: Bonardi, A.
name: Buitink, S.
name: Corstanje, A.
name: Enriquez, J. E.
name: Falcke, H.
name: Hörandel, J. R.
name: Mitra, P.
name: Mulrey, K.
name: Nelles, A.
name: Rachen, J. P.
name: Rossetto, L.
name: Schellart, P.
name: Scholten, O.
name: Thoudam, S.
name: Trinh, T. N. G.
name: ter Veen, S.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The low flux of the ultra-high energy cosmic rays (UHECR) at the highest energies provides a challenge to answer the long standing question about their origin and nature. A significant increase in the number of detected UHECR is expected to be achieved by employing Earth's moon as detector, and search for short radio pulses that are emitted when a particle interacts in the lunar rock. Observation of these short pulses with current and future radio telescopes also allows to search for the even lower fluxes of neutrinos with energies above $10^{22}$ eV, that are predicted in certain Grand-Unifying-Theories (GUTs), and e.g. models for super-heavy dark matter (SHDM). In this contribution we present the initial design for such a search with the LOFAR radio telescope.
description: To be published in the Proceedings of the ARENA2016 conference, Groningen, The Netherlands
Letter from J. R. Ackerley to John Betjeman, June 24, 1937
Creators: name: Ackerley, J. R. (Joe Randolph), 1896-1967
Publisher: name: University of Victoria Libraries
Year: 2023
Subjects: subject: Authors
valueUri: http://id.worldcat.org/fast/821688
subject: Literature, Modern
valueUri: http://id.worldcat.org/fast/1000172
subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945
subject: Betjeman, John, 1906-1984
valueUri: http://id.worldcat.org/fast/1427507
subject: Poets, English
valueUri: http://id.worldcat.org/fast/1067870
subject: Modernism (Literature)
valueUri: http://id.worldcat.org/fast/1024455
subject: Ackerley, J. R. (Joe Randolph), 1896-1967
valueUri: http://id.worldcat.org/fast/12552
subject: Television journalists
valueUri: http://id.worldcat.org/fast/1146949
subject: Authors, English--Correspondence
valueUri: http://id.worldcat.org/fast/821953
subject: Poets
valueUri: http://id.worldcat.org/fast/1067778

description: Part of a collection of letters to John Betjeman from Joe Randolph "J. R." Ackerley (writer and literary editor of the BBC's weekly magazine The Listener, and open homosexual). Ackerley writes that because he had been traveling in the south of France, he was unable to get to Betjeman's letter until now. He will try to see some of Betjamen's talks but fears it might be too late by now.
Hermite equivalence of polynomials
Creators: name: Bhargava, Manjul
name: Evertse, Jan-Hendrik
name: Győry, Kálmán
name: Remete, László
name: Swaminathan, Ashvin A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11C08

description: In this paper, we resurrect a long-forgotten notion of equivalence for univariate polynomials with integral coefficients introduced by Hermite in the 1850s. We show that the Hermite equivalence class of a polynomial has a very natural interpretation in terms of the invariant ring and invariant ideal associated with the polynomial. We apply this interpretation to shed light on the relationship between Hermite equivalence and more familiar notions of polynomial equivalence, such as ${\rm GL}_2(\mathbb{Z})$- and $\mathbb{Z}$-equivalence. Specifically, we prove that ${\rm GL}_2(\mathbb{Z})$-equivalent polynomials are Hermite equivalent and, for polynomials of degree $2$ or $3$, the converse is also true. On the other hand, for every $n\geq 4$, we give infinite collections of examples of polynomials $f,g\in \mathbb{Z}[X]$ of degree $n$ that are Hermite equivalent but not ${\rm GL}_2(\mathbb{Z})$-equivalent.
description: Compared with the previous version we have inserted some changes and corrections suggested by the anonymous referee. This is the final version. It will appear in a special volume of Acta Arithmetica to the memory of Professor Andrzej Schinzel
Dual atomic interferometer with a tunable point of minimum magnetic sensitivity
Creators: name: Hamzeloui, Saeed
name: Martínez, Daniel
name: Abediyeh, Vahideh
name: Arias, Nieves
name: Gomez, Eduardo
name: Valenzuela, Víctor Manuel
Publisher: name: arXiv
Year: 2016
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Atomic interferometers are often affected by magnetic field fluctuations. Using the clock transition at zero magnetic field minimizes the effect of these fluctuations. There is another transition in rubidium that minimizes the magnetic sensitivity at 3.2 G.We combine the previous two transitions to obtain minimum magnetic sensitivity at a tunable magnetic field between 2.2 and 3.2 G. The two interferometers evolve independently from each other and we control the magnetic sensitivity by changing the population in both transitions with a microwave pulse.
description: 7 pages,7 figures
Letter from J. R. Ackerley to John Betjeman, October 26, 1938
Creators: name: Ackerley, J. R. (Joe Randolph), 1896-1967
Publisher: name: University of Victoria Libraries
Year: 2023
Subjects: subject: Modernism (Literature)
valueUri: http://id.worldcat.org/fast/1024455
subject: Literature, Modern
valueUri: http://id.worldcat.org/fast/1000172
subject: Authors, English--Correspondence
valueUri: http://id.worldcat.org/fast/821953
subject: Ackerley, J. R. (Joe Randolph), 1896-1967
valueUri: http://id.worldcat.org/fast/12552
subject: Television journalists
valueUri: http://id.worldcat.org/fast/1146949
subject: Authors
valueUri: http://id.worldcat.org/fast/821688
subject: Betjeman, John, 1906-1984
valueUri: http://id.worldcat.org/fast/1427507
subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945
subject: Poets, English
valueUri: http://id.worldcat.org/fast/1067870
subject: Poets
valueUri: http://id.worldcat.org/fast/1067778

description: Part of a collection of letters to John Betjeman from Joe Randolph "J. R." Ackerley (writer and literary editor of the BBC's weekly magazine The Listener, and open homosexual). Ackerley tells Betjeman that he wished he sent him more of his poems as The Listener does not only publish "serious" works. He also invites him to visit him at his new office in London.
When can a local Hamiltonian be recovered from a steady state?
Creators: name: Zhou, Jing
name: Zhou, D. L.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: With the development of quantum many-body simulator, Hamiltonian tomography has become an increasingly important technique for verification of quantum devices. Here we investigate recovering the Hamiltonians of two spin chains with 2-local interactions and 3-local interactions by measuring local observables. For these two models, we show that when the chain length reaches a certain critical number, we can recover the local Hamiltonian from its one steady state by solving the homogeneous operator equation (HOE) developed in Ref. [1]. To explain the existence of such a critical chain length, we develop an alternative method to recover Hamiltonian by solving the energy eigenvalue equations (EEE). By using the EEE method, we completely recovered the numerical results from the HOE method. Then we theoretically prove the equivalence between the HOE method and the EEE method. In particular, we obtain the analytical expression of the rank of the constraint matrix in the HOE method by using the EEE method, which can be used to determine the correct critical chain length in all the cases.
description: 8 pages, 2 figures
AN ANALYSIS OF VOLATILITY OF RETAIL PRODUCT PRICES DURING THE LOCKDOWN PERIOD
Creators: name: Tanksali, Arun
Publisher: name: Zenodo
Year: 2020
Subjects: Volatility, Inflation, High-frequency, Real-time, Online prices, Lockdown, Econometrics

description: High frequency price data collected daily for a basket of retail products covering common household categories can be used to obtain interesting insights into the volatility of prices. Additional insight can be derived to infer information about the sources of products through the correlation of individual product prices to the basket. This paper uses data describes a method to arrive at a high frequency, personalized, real measure of inflation and to use the data to begin to understand the causes of price volatility.
Cogrowth Series for Free Products of Finite Groups
Creators: name: Bell, Jason
name: Liu, Haggai
name: Mishna, Marni
Publisher: name: arXiv
Year: 2021
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05Exx

description: Given a finitely generated group with generating set $S$, we study the cogrowth sequence, which is the number of words of length $n$ over the alphabet $S$ that are equal to one. This is related to the probability of return for walks the corresponding Cayley graph. Muller and Schupp proved the generating function of the sequence is algebraic when $G$ has a finite-index free subgroup (using a result of Dunwoody). In this work we make this result effective for free products of finite groups: we determine bounds for the degree and height of the minimal polynomial of the generating function, and determine the minimal polynomial explicitly for some families of free products. Using these results we are able to prove that a gap theorem holds: if $S$ is a finite symmetric generating set for a group $G$ and if $a_n$ denotes the number of words of length $n$ over the alphabet $S$ that are equal to $1$ then $\limsup_n a_n^{1/n}$ exists and is either $1$, $2$, or at least $2\sqrt{2}$.
description: 18 pages. arXiv admin note: substantial text overlap with arXiv:1805.08118
Representations of the super Yangians of types $A$ and $C$
Creators: name: Molev, A. I.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Representation Theory (math.RT)
subject: Mathematical Physics (math-ph)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We classify the finite-dimensional irreducible representations of the super Yangian associated with the orthosymplectic Lie superalgebra ${\frak osp}_{2|2n}$. The classification is given in terms of the highest weights and Drinfeld polynomials. We also include an $R$-matrix construction of the polynomial evaluation modules over the Yangian associated with the Lie superalgebra ${\frak gl}_{m|n}$, as an appendix. This is a super-version of the well-known construction for the ${\frak gl}_n$ Yangian and it relies on the Schur--Sergeev duality.
description: 23 pages, minor changes, references added, extension of arXiv:2109.02361
Schooling and its context in Sri Lanka : the effects of communal tensions in two ethnically mixed schools
Creators: name: Jayasena, Premachandra Hemapala Asoka Nalini Sandawathie
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the Reference field.
Asymptotic Freedom versus Open/Closed Duality in Large-N QCD
Creators: name: Bochicchio, Marco
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The solution of the large-N 't Hooft limit of QCD is universally believed to be a String Theory of Closed Strings in the Glueball Sector and of Open Strings in the Meson Sector. Yet, we prove a no-go theorem, that the large-N limit of QCD with massless quarks, or more generally, that the large-N limit of a vast class of confining, i.e. with a Mass Gap in the Glueball Sector, asymptotically-free Gauge Theories coupled to matter fields with no mass scale in perturbation theory cannot be a canonically-defined String Theory of Closed and Open Strings, i.e. admitting Open/Closed Duality. The no-go theorem occurs because Open/Closed Duality, implying that the ultraviolet divergences of annulus diagrams in the Open Sector arise from infrared divergences of tadpoles of massless particles in the Closed Sector, turns out to be incompatible with the existence of the Mass Gap in the Glueball Sector of confining asymptotically-free theories with no mass scale in perturbation theory in which, as for example in QCD, the first coefficient of the beta function for 't Hooft gauge coupling gets $1/N$ corrections due to the matter fields. Moreover, we suggest a way-out to the no-go theorem on the basis of a new non-canonical construction of the String S-matrix for asymptotically-free Gauge Theories such as large-N QCD, involving Topological Strings on Non-Commutative Twistor Space.
description: 8 pages; the main argument is extended to a punctured sphere with a boundary loop; further references and acknowledgements
The Jeff=1/2 antiferromagnet Sr2IrO4: A golden avenue toward new physics and functions
Creators: name: Lu, Chengliang
name: Liu, Jun-Ming
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Iridates have been providing a fertile ground for studying emergent phases of matter that arise from delicate interplay of various fundamental interactions with approximate energy scale. Among these highly focused quantum materials, perovskite Sr2IrO4 belonging to the Ruddlesden-Popper series stands out and has been intensively addressed in the last decade, since it hosts a novel Jeff = 1/2 state which is a profound manifestation of strong spin-orbit coupling. Moreover, the Jeff = 1/2 state represents a rare example of iridates that has been better understood both theoretically and experimentally. In this progress report, we take Sr2IrO4 as an example to overview the recent advances of the Jeff = 1/2 state in two aspects: materials fundamentals and functionality potentials. In the fundamentals part, we first illustrate basic issues for the layered canted antiferromagnetic order of the Jeff = 1/2 magnetic moments in Sr2IrO4, and then review the progress of the antiferromagnetic order modulation through diverse routes. Subsequently, for the functionality potentials, fascinating properties such as atomic-scale giant magnetoresistance, anisotropic magnetoresistance, and nonvolatile memory, will be addressed. This report will be concluded with our prospected remarks and outlooks.