The 3rd Shot of The 13th MSJ-SI“Diﬀerential Geometry and Integrable Systems”∼ Celebrating Professor Yoshihiro Ohnita’s retirement ∼Dates: March 3 - 13, 2023
Venue: Sugimoto Campus, Osaka Metropolitan University & Online

Supports– Mathematical Society of Japan
Principal Investigator: Yoshihiro Ohnita– OCAMI (MEXT Joint Usage/Research Center on Mathematics and Theoretical Physics)
Principal Investigator: Masashi Yasumoto– JSPS Grant-in-Aid for Scientiﬁc Research (S) No.17H06127
Principal Investigator: Masa-Hiko Saito, Co-Investigator: Yoshihiro Ohnita– JSPS Grant-in-Aid for Scientiﬁc Research (A) No.18H03668
Principal Investigator: Martin Guest, Co-Investigator: Yoshihiro Ohnita– JSPS Grant-in-Aid for Scientiﬁc Research (C) No.21K03250
Principal Investigator: Takashi Sakai– JSPS Grant-in-Aid for Early-Career Scientists No.20K14314
Principal Investigator: Masashi Yasumoto

Organizing Committee
Martin Guest (Waseda University)
Toru Kajigaya (Tokyo University of Science)
Wayne Rossman (Kobe University)
Masa-Hiko Saito (Kobe Gakuin University)
Takashi Sakai (chair, Tokyo Metropolitan University)
Masashi Yasumoto (Tokushima University)

International Advisory BoardYoshihiro Ohnita (co-chair, OCAMI Osaka Metropolitan University)
Franz Pedit (UMass Amherst)

Morimoto

Miyatake

14:30-15:00

15:50-16:20

16:40-17:10

17:30-18:20

19:15-21:15

MoriyaTaniguchi(Online)

11:20-12:10

Wood

Sergyeyev(Online)Pinkall(Online)

Komyo

H.-Jeromin(Online)

Branding(Online)

ShimadaJikumaru

Ma(Online)

KusnerMarch 5HaterumaHara

L. Heller

Dorfmeister

March 410:00-10:50

March 3

Free
Discussion

Udagawa(Online)Wolf

March 6Free
Discussion

March 7

Bobenko(Online)

OhyamaLam

Szewieczek

S. Heller
14:30-15:20
Leschke
16:10-17:00

SagemanFurnas

CarberryCheng

March 9Burstall
13:10-14:00

FreeDiscussion

March 8Timetable

Pedit

Shinkawa(Online)Taketomi(14:10-14:40)
Mizoguchi(14:50-15:20)
C.-Moscoso(16:00-16:30)
Sasaki(16:40-17:10)

BanquetKotaniOhkawaMatsumoto

Saito

MulaseMarch 11

Tang
(Online)Chi

March 10

Closing(17:00-17:10)

Ohnita16:10-17:00

Miyaoka
14:30-15:20

Kajiwara

BiswasMarch 12

FreeDiscussion

March 13

The 3rd Shot of The 13th MSJ-SI“Diﬀerential Geometry and Integrable Systems”∼ Celebrating Professor Yoshihiro Ohnita’s retirement ∼Dates: March 3 - 13, 2023
Venue: Sugimoto Campus, Osaka Metropolitan University & Online

ProgramMarch 3
9:50-10:00
10:00-10:50

11:20-12:10

14:30-15:00
15:50-16:20
16:40-17:10
17:30-18:20

Opening
Josef Dorfmeister (TU Munich, Germany)
Totally symmetric and and ﬁnite uniton type harmonic maps into arbitrary
inner symmetric spaces
Tetsuya Taniguchi (Nihon University, Japan)
Characterizations of Ricci ﬂat metrics and Lagrangian submanifolds in termsof the variational problem
Masahiro Morimoto (OCAMI Osaka Metropolitan University, Japan)
Minimal PF submanifolds in Hilbert spaces with symmetries
Natsuo Miyatake (IMI Kyushu University, Japan)
Generalizations of the Hermitian-Einstein equation for cyclic Higgs bundles
Arata Komyo (Kobe University, Japan)
A nonclassical algebraic solution of a 3-variable irregular Garnier system
Udo Hertrich-Jeromin (Online, TU Wien, Austria)
Symmetry breaking

March 410:00-10:50
11:20-12:10
14:30-15:00
15:50-16:20
16:40-17:10

17:30-18:20

Lynn Heller (BIMSA, China)
On the existence of holomorphic curves in compact quotients of SL(2, C)
Katsuhiro Moriya (University of Hyogo, Japan)
Transforms of minimal surfacesMasaya Hara (Kobe University, Japan)
Darboux transformations in the Lorentz-Minkowski plane
Yudai Hateruma (Waseda University, Japan)
On some Lie-theoretic solutions of the tt*-Toda equations
Artur Sergyeyev (Online, Silesian University in Opava, Czech Republic)
Integrable systems in four independent variables related to contact
structures in dimension three
Ulrich Pinkall (Online, TU Berlin, Germany)
Snakes, falling cats and ﬁber bundles

March 5
10:00-10:50
11:20-12:10
14:30-15:00

15:50-16:20

16:40-17:10
17:30-18:20

Robert Kusner (UMass Amherst, USA)
Eigenspaces and minimal surfaces
Hui Ma (Online, Tsinghua University, China)
Construction of minimal Lagrangian surfaces in CP 2 via integrable system
Yoshiki Jikumaru (IMI Kyushu University, Japan)
On the truss structures in architectural design based on discrete isothermic
surfaces
Masafumi Shimada (Kyushu University, Japan)
On a heat equation of SL(2, R), and a future direction of its
q-deformation
Albert Wood (National Taiwan University, Taiwan)
Immersed special Lagrangians and mean curvature ﬂow
Volker Branding (Online, University of Vienna, Austria)
Higher order generalizations of harmonic maps

March 6
10:00-10:50
11:20-12:10

Michael Wolf (Georgia Institute of Technology, USA)Ray structures on Teichmüller space
Seiichi Udagawa (Online, Nihon University, Japan)
Solving the sine-Gordon equation and its discretization

March 7
Free Discussion

March 8
13:10-14:00
14:30-15:20
16:10-17:00
17:30-18:20

Fran Burstall (University of Bath, UK)
Stability of harmonic maps to symmetric spaces
Sebastian Heller (BIMSA, China)
New minimal Lagrangian surfaces in CP 2
Katrin Leschke (University of Leicester, UK)
Periodic Darboux transforms
Alexander Bobenko (Online, TU Berlin, Germany)
Orthogonal ring patterns and discrete surfaces

March 9
10:00-10:50
11:20-12:10
14:30-15:00
15:50-16:20
16:40-17:10
17:30-18:20

Qing-Ming Cheng (Fukuoka University, Japan)
Singularities of mean curvature ﬂow
Emma Carberry (University of Sydney, Australia)
Deformations of spectral curve data
Andrew. Sageman-Furnas (NC State University, USA)
Constructing isometric tori with the same curvatures
Gudrun Szewieczek (TU Berlin, Germany)
Smooth and discrete constrained elastic curves in space forms
Wai Yeung Lam (University of Luxembourg, Luxembourg)
Deformation space of circle patterns
Yousuke Ohyama (Tokushima University, Japan)
Global geometry of q-Painlevé equations

March 10
10:00-10:50

11:20-12:10
14:10-14:40
14:50-15:20
16:00-16:30

16:40-17:10
17:30-18:20

Quo-Shin Chi (Washington University in St. Louis, USA)
Fano 3-folds and classiﬁcation of constantly curved holomorphic 2-spheresof degree 6 in the complex Grassmannian G(2, 5)
Zizhou Tang (Online, Chern Institute of Mathematics, China)
On two questions of I. M. James
Yuichiro Taketomi (OCAMI Osaka Metropolitan University, Japan)
A maximal element of a moduli space of Riemannian metrics
Fumika Mizoguchi (Osaka City University, Japan)Nilpotent Lie algebras obtained by quivers and Ricci solitons
Luis Pedro Castellanos Moscoso (OCAMI Osaka Metropolitan University,Japan)
Symplectic structures on almost abelian Lie algebras
Yuuki Sasaki (National Institute of Technology, Tokyo College, Japan)
Some submanifolds of the associative Grassmann manifold
Franz Pedit (UMass Amherst, USA)
50 years of harmonic maps

March 11
10:00-10:50
11:20-12:10

14:30-15:00
15:50-16:20

16:40-17:10
17:30-18:20

Motohico Mulase (UC Davis, USA)The Gaiotto correspondence, quantization, and connections deﬁned over Q
Masa-Hiko Saito (Kobe Gakuin University, Japan)
Canonical coordinates of moduli spaces of connections and Higgs bundles,
isomonodromic deformations and diﬀerential equations of Painlevé type
Eriko Shinkawa (Online, AIMR Tohoku University, Japan)
Geometry of anisotropic double crystals and classiﬁcation of some examples
Takafumi Matsumoto (Kobe University, Japan)
Moduli space of rank three logarithmic connections on the projective linewith three poles
Ryo Ohkawa (OCAMI Osaka Metropolitan University, Japan)
Wall-crossing formula for framed quiver moduli
Motoko Kotani (Tohoku University, Japan)
Discrete surface theory, and convergence of sequence of subdivided discretesurfaces

March 1210:00-10:50
11:20-12:10
14:30-15:20
16:10-17:00
17:00-17:10

Indranil Biswas (Tata Institute of Fundamental Research, India)
Symplectic geometry of the moduli spaces
Kenji Kajiwara (IMI Kyushu University, Japan)
Genaration of aesthetic shapes by integrable geometry
Reiko Miyaoka (Tohoku University, Japan)
Review of my research
Yoshihiro Ohnita (OCAMI Osaka Metropolotan University, Japan)
Minimal submanifolds, harmonic maps and isoparametric submanifolds
Closing

March 13
Free Discussion