大阪市立大学数学研究所
 
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Colloquium(2013)

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Japanese

Last Modified on 2013.12.27

Speaker Yoshihisa Saito(The University of Tokyo)
Title 量子座標環の表現論
Date January 15 (Wed.) 2014, 16:30〜17:30
Place  Dept. of Mathematics, General Research Bldg., 301
Abstract
Japanese version only      


Speaker Teruaki Kitano(Soka University)
Title 結び目群の表現の変形の障害としてのAlexander多項式
Date December 4 (Wed.) 2013, 16:30〜17:30
Place  Dept. of Mathematics, General Research Bldg., 301
Abstract
Japanese version only      


Speaker William Kantor(University of Oregon)
Title Short presentations of finite simple groups
Date November 28 (Thu.) 2013, 16:30〜17:30
Place  Dept. of Mathematics, General Research Bldg., 301
Abstract
Group presentations somewhat started with Hamilton. I'll review 19th century history before getting to a recent result: almost all finite simple groups have presentations requiring surprisingly few relations (with Guralnick, Kassabov and Lubotzky). For example, all alternating (and symmetric) groups have presentations using only 3 generators and 7 relations. The proofs are relatively elementary but too long for more than a few small hints.      


Speaker Hirotaka Akiyoshi(Osaka City University)
Title 3次元錐双曲構造の具体的構成
Date November 27 (Wed.) 2013, 16:30〜17:30
Place  Dept. of Mathematics, General Research Bldg., 301
Abstract
Japanese version only      


Speaker Hiroyuki Minamoto(Osaka Prefecture University)
Title 導来二重双対のホモトピー極限による記述
Date October 30 (Wed.) 2013, 16:30〜17:30
Place  Dept. of Mathematics, General Research Bldg., 301
Abstract
Japanese version only      


Speaker Michio Yoshiwaki
(Osaka City University Advanced Mathematical Institute)
Title 三角圏の次元と多元環の表現論
Date October 30 (Wed.) 2013, 15:00〜16:00
Place  Dept. of Mathematics, General Research Bldg., 301
Abstract
Japanese version only      


Speaker Seiichi Kamada(Osaka City University)
Title カンドル代数と結び目理論
Date July 17 (Wed.) 2013, 16:30〜17:30
Place  Dept. of Mathematics, General Research Bldg., 301
Abstract
Japanese version only      


Speaker Zhu Jian-Feng(Huaqiao University)
Title Some criteria for quasiconformality and Landau-Bloch
constants of harmonic mappings in the unit disk
Date June 19 (Wed.) 2013, 16:30〜17:30
Place  Dept. of Mathematics, General Research Bldg., 301
Abstract
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Speaker Hiroaki Aikawa(Hokkaido University)
Title Intrinsic ultracontractivity and the boundary Harnack principle
--- A unified approach with capacitary width
Date June 12 (Wed.) 2013, 16:30〜17:30
Place  Dept. of Mathematics, General Research Bldg., 301
Abstract
We study intrinsic ultracontractivity for the semigroup associated with Dirichlet heat kernel. We give a sharp sufficient condition for intrinsic ultracontractivity, valid for arbitrary domains, in terms of capacitary width of sublevel sets of the Green function and the ground state. This condition, together with the Harnack inequality, yields sufficient conditions for intrinsic ultracontractivity of nonsmooth domains. Our approach employs a parabolic box argument, a counterpart of the box argument for the boundary Harnack principle. It enables us to treat intrinsic ultracontractivity and the boundary Harnack principle in parallel.       


Speaker Masato Okado(Osaka City University)
Title 箱玉系とKKR写像
Date May 8 (Wed.) 2013, 16:30〜17:30
Place  Dept. of Mathematics, General Research Bldg., 301
Abstract
Japanese version only     
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