Differential Geometry Seminar (2020)

As a project of OCAMI, we shall promote the seminar on differential geometry in the wide sense of including the areas related to geometric analysis, topology, algebraic geometry, mathematical physics, integrable systems, information sciences etc.

Contact Yoshihiro Ohnita
Hiroshi Tamaru
Shin Kato
Kaname Hashimoto
Masashi Yasumoto
Department of Mathematics Osaka City University
Sugimoto, Sumiyoshi-ku, Osaka, 558-8585, JAPAN
TEL 06-6605-2617 (Ohnita)
06-6605-2615 (Tamaru)
06-6605-2616 (Kato)
E-mail ohnita[at]sci.osaka-cu.ac.jp
tamaru[at]sci.osaka-cu.ac.jp
shinkato[at]sci.osaka-cu.ac.jp
h-kaname[at]sci.osaka-cu.ac.jp
yasumoto[at]sci.osaka-cu.ac.jp

　

List by Year

Speaker Naoya Ando　(Kumamoto University)
Title Lecture１　The lifts of surfaces in neutral 4-manifolds into the 2-Grassmann bundles
Lecture２　Isotropicity of surfaces in Lorentzian 4-manifolds with zero mean curvature vector
Date March 29 (Mon.) 2021, 13:30 ～ 16:15
Place Zoom
Abstract Japanese page only

　

Speaker Yu Kawakami　(Kanazawa University)
Title Bernstein型問題の最近の進展について
Date March 13 (Sat.) 2021, 14:00 ～　15：50
Place Zoom
Abstract Japanese page only

　

Speaker Takayuki Koike　(Ocaka city University)
Title On the complement of a hypersurface with flat normal bundle which corresponds to a semipositive line bundle
Date October 15 (Thu.) 2020, 17:30 ～ 19:00
Place Zoom
Abstract We investigate the complex analytic structure of the complement of a non-singular hypersurface with unitary flat normal bundle when the corresponding line bundle admits a Hermitian metric with semipositive curvature.

　

Speaker Yuichiro　Taketomi　(OCAMI)
Title Edge coloring graphs and 2-step nilpotent Lie algebras
Date August 7 (Fri.) 2020, 17:30 ～ 19:00
Place Zoom
Abstract Japanese page only

　

Speaker Shin　Kato　(Ocaka city University)
Title 光的直線の彼方の特異点
Date July 17 (Fri.) 2020, 17:30 ～ 19:00
Place Zoom
Abstract Japanese page only