pinecone/core-2020-05-10-deduplication huggingface dataset:
Advances in C-Planarity Testing of Clustered Graphs (Extended Abstract)

A clustered graph C=(G,T) consists of an undirected graph G and a rooted tree T in which the leaves of T correspond to the vertices of G=(V,E) . Each vertex c in T corresponds to a subset of the vertices of the graph called ''cluster''. C -planarity is a natural extension of graph planarity for clustered graphs, and plays an important role in automatic graph drawing. The complexity status of c -planarity testing is unknown. It has been shown that c -planarity can be tested in linear time for c -connected graphs, i.e., graphs in which the cluster induced subgraphs are connected. In this paper, we provide a polynomial time algorithm for c -planarity testing for 'àlmost'' c -connected clustered graphs, i.e., graphs for which all c -vertices corresponding to the non- c -connected clusters lie on the same path in T starting at the root of T , or graphs in which for each non-connected cluster its super-cluster and all its siblings are connected. The algorithm uses ideas of the algorithm for subgraph induced planar connectivity augmentation. We regard it as a first step towards general c -planarity testing
Search for heavy resonances decaying to tau lepton pairs in proton-proton collisions at $\sqrt{s} = 13$ TeV

A search for heavy resonances that decay to tau lepton pairs is performed using proton-proton collisions at $\sqrt{s} = 13$ TeV. The data were collected with the CMS detector at the CERN LHC and correspond to an integrated luminosity of 2.2 $fb^{−1}$. The observations are in agreement with standard model predictions. An upper limit at 95% confidence level on the product of the production cross section and branching fraction into tau lepton pairs is calculated as a function of the resonance mass. For the sequential standard model, the presence of Z′ bosons decaying into tau lepton pairs is excluded for Z′ masses below 2.1 TeV, extending previous limits for this final state. For the topcolor-assisted technicolor model, which predicts Z′ bosons that preferentially couple to third-generation fermions, Z′ masses below 1.7 TeV are excluded, representing the most stringent limit to date
Cross-correlations of the Lyα forest with weak-lensing convergence. analytical estimates of signal-to-noise ratio and implications for neutrino mass and dark energy

We expect a detectable correlation between two seemingly unrelated quantities: the four-point function of the cosmic microwave background (CMB) and the amplitude of flux decrements in quasar (QSO) spectra. The amplitude of CMB convergence in a given direction measures the projected surface density of matter. Measurements of QSO flux decrements trace the small-scale distribution of gas along a given line of sight. While the cross-correlation between these two measurements is small for a single line of sight, upcoming large surveys should enable its detection. This paper presents analytical estimates for the signal-to-noise ratio (S/N) for measurements of the cross-correlation between the flux decrement and the convergence, <delta F kappa >, and for measurements of the cross-correlation between the variance in flux decrement and the convergence, <(delta F)(2)kappa >. For the ongoing BOSS (SDSS-III) and Planck surveys, we estimate an S/N of 30 and 9.6 for these two correlations. For the proposed BigBOSS and ACTPOL surveys, we estimate an S/N of 130 and 50, respectively. Since <(delta F)(2)kappa > proportional to sigma(4)(8), the amplitude of these cross-correlations can potentially be used to measure the amplitude of sigma(8) at z similar to 2%-2.5% with BOSS and Planck and even better with future data sets. These measurements have the potential to test alternative theories for dark energy and to constrain the mass of the neutrino. The large potential signal estimated in our analytical calculations motivates tests with nonlinear hydrodynamic simulations and analyses of upcoming data sets
Non-Strict Independence-Based Program Parallelization Using Sharing and Freeness Information.

The current ubiquity of multi-core processors has brought renewed interest in program parallelization. Logic programs allow studying the parallelization of programs with complex, dynamic data structures with (declarative) pointers in a comparatively simple semantic setting. In this context, automatic parallelizers which exploit and-parallelism rely on notions of independence in order to ensure certain efficiency properties. “Non-strict” independence is a more relaxed notion than the traditional notion of “strict” independence which still ensures the relevant efficiency properties and can allow considerable more parallelism. Non-strict independence cannot be determined solely at run-time (“a priori”) and thus global analysis is a requirement. However, extracting non-strict independence information from available analyses and domains is non-trivial. This paper provides on one hand an extended presentation of our classic techniques for compile-time detection of non-strict independence based on extracting information from (abstract interpretation-based) analyses using the now well understood and popular Sharing + Freeness domain. This includes algorithms for combined compile-time/run-time detection which involve special run-time checks for this type of parallelism. In addition, we propose herein novel annotation (parallelization) algorithms, URLP and CRLP, which are specially suited to non-strict independence. We also propose new ways of using the Sharing + Freeness information to optimize how the run-time environments of goals are kept apart during parallel execution. Finally, we also describe the implementation of these techniques in our parallelizing compiler and recall some early performance results. We provide as well an extended description of our pictorial representation of sharing and freeness information
CDK‐mediated activation of the SCFFBXO28 ubiquitin ligase promotes MYC‐driven transcription and tumourigenesis and predicts poor survival in breast cancer

SCF (Skp1/Cul1/F‐box) ubiquitin ligases act as master regulators of cellular homeostasis by targeting key proteins for ubiquitylation. Here, we identified a hitherto uncharacterized F‐box protein, FBXO28 that controls MYC‐dependent transcription by non‐proteolytic ubiquitylation. SCFFBXO28 activity and stability are regulated during the cell cycle by CDK1/2‐mediated phosphorylation of FBXO28, which is required for its efficient ubiquitylation of MYC and downsteam enhancement of the MYC pathway. Depletion of FBXO28 or overexpression of an F‐box mutant unable to support MYC ubiquitylation results in an impairment of MYC‐driven transcription, transformation and tumourigenesis. Finally, in human breast cancer, high FBXO28 expression and phosphorylation are strong and independent predictors of poor outcome. In conclusion, our data suggest that SCFFBXO28 plays an important role in transmitting CDK activity to MYC function during the cell cycle, emphasizing the CDK‐FBXO28‐MYC axis as a potential molecular drug target in MYC‐driven cancers, including breast cancer
Light curves and colours of the faint Uranian irregular satellites Sycorax, Prospero, Stephano, Setebos, and Trinculo

Context: After the work of Gladman et al. (1998, Nature, 392, 897), it is now assessed that many irregular satellites are orbiting around Uranus. Aims: Despite many studies performed in past years, very little is know about the light-curves of these objects and inconsistencies are present between colours derived by different authors. This situation motivated our effort to improve both the knowledge of colours and light curves. Methods: We present and discuss, the time series observations of Sycorax, Prospero, Stephano, Setebos, and Trinculo, five faint, irregular satellites of Uranus, which were carried out at VLT, ESO Paranal (Chile) on the nights between 29 and 30 July, 2005 and 25 and 30 November, 2005. Results: We derive light curves for Sycorax and Prospero and colours for all of these these bodies. Conclusions: For Sycorax we obtain colours B-V = 0.839 ± 0.014, V-R = 0.531 ± 0.005, and a light-curve which is suggestive of a periodical variation with period ≈3.6 h and amplitude [aprox]0.067 ± 0.004 mag. The periods and colours we derive also for Sycorax are in agreement with our previous determination in 1999 using NTT. We also derive a light-curve for Prospero which suggests an amplitude of about 0.2 mag and a periodicity of about 4 h. However, the sparseness of our data, prevents a more precise characterization of the light-curves, and we can not determine whether they are one-peaked or two-peaked. Hence, these periods and amplitudes have to be considered preliminary estimates. As for Setebos, Stephano, and Trinculo the present data do not allow us to derive any unambiguous periodicity, despite the fact that Setebos displays a significant variability with amplitude about as large as that of Prospero. Colours for Prospero, Setebos, Stephano, and Trinculo are in marginal agreement with the literature.Fil: Maris, M.. Osservatorio Astronomico di Trieste; ItaliaFil: Carraro, G.. Universidad de Chile; ChileFil: Parisi, Mirta Gabriela. Universidad de Chile; Chile. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentin
An online repository of Swift/XRT light curves of GRBs

Context. Swift data are revolutionising our understanding of Gamma Ray
Bursts. Since bursts fade rapidly, it is desirable to create and disseminate
accurate light curves rapidly.
  Aims. To provide the community with an online repository of X-ray light
curves obtained with Swift. The light curves should be of the quality expected
of published data, but automatically created and updated so as to be
self-consistent and rapidly available. Methods. We have produced a suite of
programs which automatically generates Swift/XRT light curves of GRBs. Effects
of the damage to the CCD, automatic readout-mode switching and pile-up are
appropriately handled, and the data are binned with variable bin durations, as
necessary for a fading source.
  Results. The light curve repository website
(http://www.swift.ac.uk/xrt_curves) contains light curves, hardness ratios and
deep images for every GRB which Swift's XRT has observed. When new GRBs are
detected, light curves are created and updated within minutes of the data
arriving at the UK Swift Science Data Centre.Comment: 8 pages, 6 figures, Accepted for publication in A&
Refined Chern-Simons theory and (q, t)-deformed Yang-Mills theory : Semi-classical expansion and planar limit

We study the relationship between refined Chern-Simons theory on lens spaces S-3/Z(p) and (q, t)-deformed Yang-Mills theory on the sphere S-2. We derive the instanton partition function of (q, t)-deformed U(N) Yang-Mills theory and describe it explicitly as an analytical continuation of the semi-classical expansion of refined Chern-Simons theory. The derivations are based on a generalization of the Weyl character formula to Macdonald polynomials. The expansion is used to formulate q-generalizations of beta-deformed matrix models for refined Chern-Simons theory, as well as conjectural formulas for the chi(y)-genus of the moduli space of U(N) instantons on the surface O(-p) -> P-1 for all p >= 1 which enumerate black hole microstates in refined topological string theory. We study the large N phase structures of the refined gauge theories, and match them with refined topological string theory on the resolved conifold
Single-Transverse Spin Asymmetry in Semi-Inclusive Deep Inelastic
  Scattering

We study the single-transverse spin asymmetry in semi-inclusive hadron
production in deep inelastic scattering. We derive the leading contribution to
the asymmetry at moderate transverse momentum $P_{h\perp}$ of the produced
hadron in terms of twist-three quark-gluon correlation functions, and compare
with the approach based on the factorization at fixed transverse momentum
involving the asymmetric transverse-momentum and spin-dependent quark
distribution. We verify that the two approaches yield identical results in this
regime. By a comparison with our earlier calculations for the single-spin
asymmetry in the Drell-Yan process we recover the well-established
process-dependence of the time-reversal-odd transverse-momentum-dependent quark
distributions that generate single-spin phenomena.Comment: 17 pages, 3 figure
Particle Number and 3D Schroedinger Holography

We define a class of space-times that we call asymptotically locally
Schroedinger space-times. We consider these space-times in 3 dimensions, in
which case they are also known as null warped AdS. The boundary conditions are
formulated in terms of a specific frame field decomposition of the metric which
contains two parts: an asymptotically locally AdS metric and a product of a
lightlike frame field with itself. Asymptotically we say that the lightlike
frame field is proportional to the particle number generator N regardless of
whether N is an asymptotic Killing vector or not.
  We consider 3-dimensional AlSch space-times that are solutions of the massive
vector model. We show that there is no universal Fefferman-Graham (FG) type
expansion for the most general solution to the equations of motion. We show
that this is intimately connected with the special role played by particle
number. Fefferman-Graham type expansions are recovered if we supplement the
equations of motion with suitably chosen constraints. We consider three
examples. 1). The massive vector field is null everywhere. The solution in this
case is exact as the FG series terminates and has N as a null Killing vector.
2). N is a Killing vector (but not necessarily null). 3). N is null everywhere
(but not necessarily Killing). The latter case contains the first examples of
solutions that break particle number, either on the boundary directly or only
in the bulk. Finally, we comment on the implications for the problem of
holographic renormalization for asymptotically locally Schroedinger
space-times.Comment: 56 pages, v3: matches version published in JHE
WW production at high transverse momenta beyond NLO

Pair production of W gauge bosons is an important process at the LHC entering
many experimental analyses, both as background in new-physics searches or Higgs
measurements and as signal in precision studies and tests of the Standard
Model. Therefore, accurate predictions for this class of processes are of great
interest in order to exploit the full potential of LHC measurements. We use the
LoopSim method to combine NLO QCD results for WW and WW+jet, as well as the
loop-squared gluon-fusion contribution, to obtain approximate NNLO predictions
for WW production. The cross sections are calculated with VBFNLO and include
leptonic decays of the W bosons as well as finite-width and off-shell effects.
We find that the size of the additional corrections beyond NLO can be
significant and well outside of the NLO error bands given by renormalization
and factorization scale variation. Applying a jet veto, we observe further
negative corrections at NNLO, which we relate to the presence of large Sudakov
logarithms.Comment: 12 pages, 5 figures; v2: expanded discussion in a few places,
  improved table 1, added references, version accepted by Nucl. Phys.
Supersymmetry Unification Predictions for M_top V_cb and tan(beta)

We study the predictions for M_top, tan(beta) and V_cb in a popular texture
ansatze for the fermion mass matrices. We do this both for the Minimal
Supersymmetric Standard Model (MSSM) and for the simplest model (MSSM-BRpV)
where a bilinear R-Parity violating term is added to the superpotential. We
find that taking the experimental values for M_top and V_cb at 99 % C.L. and
the GUT relations h_b=h_tau and (V_cb)^2=h_c/h_t within 5 %, the large
tan(beta) solution, characteristic in the MSSM with bottom--tau unification,
becomes disallowed. In contrast the corresponding allowed region for the
MSSM-BRpV is slightly larger. We also find that important modifications occur
if we relax the texture conditions at the GUT scale. For example, if the GUT
relations are imposed at 40 %, the large tan(beta) branch in the MSSM becomes
fully allowed. In addition, in MSSM-BRpV the whole tan(beta)-M_top plane become
allowed, finding unification at any value of tan(beta).Comment: 15 pages, including 6 figures. Late
NC Calabi-Yau Manifolds in Toric Varieties with NC Torus fibration

Using the algebraic geometry method of Berenstein and Leigh (BL),
hep-th/0009209 and hep-th/0105229), and considering singular toric varieties
${\cal V}_{d+1}$ with NC irrational torus fibration, we construct NC extensions
${\cal M}_{d}^{(nc)}$ of complex d dimension Calabi-Yau (CY) manifolds embedded
in ${\cal V}_{d+1}^{(nc)}$. We give realizations of the NC $\mathbf{C}^{\ast
r}$ toric group, derive the constraint eqs for NC Calabi-Yau (NCCY) manifolds
${\cal M}^{nc}_d$ embedded in ${\cal V}_{d+1}^{nc}$ and work out solutions for
their generators. We study fractional $D$ branes at singularities and show
that, due to the complete reducibility property of $\mathbf{C}^{\ast r}$ group
representations, there is an infinite number of non compact fractional branes
at fixed points of the NC toric group.Comment: 12 pages, LaTex, no figur
BTZ black hole from 3+1 gravity

We propose an approach for constructing spatial slices of (3+1) spacetimes with cosmological constant but without a matter content, which yields (2+1) vacuum with $\Lambda$ solutions. The reduction mechanism from (3+1) to (2+1) gravity is supported on a criterion in which the Weyl tensor components are required to vanish together with a dimensional reduction via an appropriate foliation. By using an adequate reduction mechanism from the Pleba\'nski-Carter[A] solution in (3+1) gravity, the (2+1) BTZ solution can be obtained
Universally Coupled Massive Gravity, III: dRGT-Maheshwari Pure Spin-$2$,
  Ogievetsky-Polubarinov and Arbitrary Mass Terms

Einstein's equations were derived for a free massless spin-$2$ field using
universal coupling in the 1950-70s by various authors; total stress-energy
including gravity's served as a source for linear free field equations. A
massive variant was likewise derived in the late 1960s by Freund, Maheshwari
and Schonberg, and thought to be unique. How broad is universal coupling? In
the last decade four $1$-parameter families of massive spin-$2$ theories
(contravariant, covariant, tetrad, and cotetrad of almost any density weights)
have been derived using universal coupling. The (co)tetrad derivations included
2 of the 3 pure spin-$2$ theories due to de Rham, Gabadadze, and Tolley; those
two theories first appeared in the $2$-parameter Ogievetsky-Polubarinov family
(1965), which developed the symmetric square root of the metric as a nonlinear
group realization. One of the two theories was identified as pure spin-$2$ by
Maheshwari in 1971-2, thus evading the Boulware-Deser-Tyutin-Fradkin ghost by
the time it was announced. Unlike the previous 4 families, this paper permits
_nonlinear_ field redefinitions to build the effective metric. By not insisting
in advance on knowing the observable significance of the graviton potential to
all orders, one finds that an _arbitrary_ graviton mass term can be derived
using universal coupling. The arbitrariness of a universally coupled
mass/self-interaction term contrasts sharply with the uniqueness of the
Einstein kinetic term. One might have hoped to use universal coupling as a
tie-breaking criterion for choosing among theories that are equally
satisfactory on more crucial grounds (such as lacking ghosts and having a
smooth massless limit). But the ubiquity of universal coupling implies that the
criterion doesn't favor any particular theories among those with the Einstein
kinetic term
Search for invisible decays of a Higgs boson using vector-boson fusion
  in $pp$ collisions at $\sqrt{s}=8$ TeV with the ATLAS detector

A search for a Higgs boson produced via vector-boson fusion and decaying into
invisible particles is presented, using 20.3 fb$^{-1}$ of proton--proton
collision data at a centre-of-mass energy of 8 TeV recorded by the ATLAS
detector at the LHC. For a Higgs boson with a mass of 125 GeV, assuming the
Standard Model production cross section, an upper bound of 0.28 is set on the
branching fraction of $H\to$ invisible at 95% confidence level, where the
expected upper limit is 0.31. The results are interpreted in models of
Higgs-portal dark matter where the branching fraction limit is converted into
upper bounds on the dark-matter--nucleon scattering cross section as a function
of the dark-matter particle mass, and compared to results from the direct
dark-matter detection experiments.Comment: 27 pages plus author list (43 pages total), 8 figures, 11 tables,
  published version, all figures are available at
  https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HIGG-2013-16
The Mice at play in the CALIFA survey : a case study of a gas-rich major merger between first passage and coalescence

Funding: V. W. from the European Research Council Starting Grant (P.I. Wild SEDmorph), M. P. from the Marie Curie Career Reintegration Grant (P.I. Wild Phiz-ev).We present optical integral field spectroscopy (IFS) observations of the Mice, a major merger between two massive (>10^11Msol) gas-rich spirals NGC4676A and B, observed between first passage and final coalescence. The spectra provide stellar and gas kinematics, ionised gas properties and stellar population diagnostics, over the full optical extent of both galaxies. The Mice provide a perfect case study highlighting the importance of IFS data for improving our understanding of local galaxies. The impact of first passage on the kinematics of the stars and gas has been significant, with strong bars likely induced in both galaxies. The barred spiral NGC4676B exhibits a strong twist in both its stellar and ionised gas disk. On the other hand, the impact of the merger on the stellar populations has been minimal thus far: star formation induced by the recent close passage has not contributed significantly to the global star formation rate or stellar mass of the galaxies. Both galaxies show bicones of high ionisation gas extending along their minor axes. In NGC4676A the high gas velocity dispersion and Seyfert-like line ratios at large scaleheight indicate a powerful outflow. Fast shocks extend to ~6.6kpc above the disk plane. The measured ram pressure and mass outflow rate (~8-20Msol/yr) are similar to superwinds from local ULIRGs, although NGC4676A has only a moderate infrared luminosity of 3x10^10Lsol. Energy beyond that provided by the mechanical energy of the starburst appears to be required to drive the outflow. We compare the observations to mock kinematic and stellar population maps from a merger simulation. The models show little enhancement in star formation during and following first passage, in agreement with the observations. We highlight areas where IFS data could help further constrain the models.PostprintPeer reviewe