TAKAGI Izumi Last updated: Feb 16, 2018 at 19:42
Committee Memberships
Jun 2012
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Today
公益財団法人アジア生命保険振興センター 理事
Apr 2000
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Today
仙台数学セミナー組織委員会 組織委員
Apr 2000
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Today
Funkcialaj Ekvacioj 編集委員会 編集委員
Apr 2000
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Today
財団法人川井数理科学財団 常務理事
Apr 2000
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Mar 2013
東北数学雑誌編集委員会 編集委員
Published Papers
Locating the peaks of least-energy solutions to a semilinear Neumann problem
TAKAGI Izumi, et al.
Duke Mathematical Journal 70(2) 247-281 1993 [Refereed]
On the shape of least-energy solutions to a semilinear Neumann problem
TAKAGI Izumi
Communications on Pure and Applied Mathematics 44 1991 [Refereed]
Wei-Ming Ni, Kanako Suzuki and Izumi Takagi
Jornal of Differential Equations 229 426-465 Oct 2006 [Refereed]
Pattern formation in a diffusion-ODE model with hysteresis
Anna Marciniak-Czochra, Madoka Nakayama, Izumi Takagi
Differential and Integral Equations 28(7-8) 655-694 2015 [Refereed]
Kanako Suzuki, Izumi Takagi
Functional Equations 54 237-274 Aug 2011 [Refereed]
Global bifurcation structure on a shadow system with a source term--representaion of all solutions
Takaichi, Hideaki; Takagi, Izumi; Yotsutani, Shoji
Discrete Contin. Dyn. Syst. 2011, Dynamical systems, differential equations and applications. 8th AIMS Conference. Suppl. Vol II Suppl 1344-1350 2011 [Refereed]
Collapse of patterns and effect of basic production terms in some reaction-diffusion systems
Kanako Suzuki and Izumi Takagi
Mathematical Sciences and Applications. Current Advances in Nonlinear Analysis and Related Topics 32 163-187 Feb 2010 [Invited]
Behavior of solutions to an activator-inhibitor system with basic production terms
Kanako Suzuki, Izumi Takagi
Proceedings of the Czech-Japanese Seminar in Applied Mathematics 2008 held at Takachiho/University of Miyazaki, Miyazaki, Japan, September 1-7, 2008 49-59 Feb 2009 [Refereed]
Representation formula for the critical points of the Tadjbakhsh-Odeh functional and its application
Kohtaro Watanabe, Izumi Takagi
Japan Journal of Industrial and Applied Mathematics 25 331-372 Dec 2008 [Refereed]
Global solutions to a one-dimensional nonlinear parabolic system modeling colonial formation by chemotactic bacteria
Khin Phyu Phyu Htoo, Masayasu Mimura, Izumi Takagi
Advanced Studies in Pure Mathematics, Asymptotic Analysis and Singularities 47(2) 613-622 Oct 2007 [Refereed]
Determination of the limit sets of trajectories of the Gierer-Meinhardt system without diffusion
Wei-Ming Ni, Kanako Suzuki, Izumi Takagi
Advanced Studies in Pure Mathematics, Asymptotic Analysis and Singularities 47(2) 689-708 Oct 2007 [Refereed]
On the role of the source terms in an activator-inhibitor system proposed by Gierer-Meinhardt
Kanako Suzuki, Izumi Takagi
Advanced Studies in Pure Mathematics, Asymptotic Analysis and Singularities 42 749-766 Oct 2007 [Refereed]
Takeyuki Nagasawa and Izumi Takagi
Calculus of Variations and Partial Differential Equations 16(1) 2003-63-111 Jan 2003 [Refereed]
Stability of least energy patterns of the shadow system for an activator-inhibitor model
Wei-Ming Ni, Izumi Takagi, and Eiji Yanagida
Japan Journal of Industrial and Applied Mathematics 18 259-272 Jun 2001 [Refereed]
Chang-Shou Lin and Izumi Takagi
Calculus of Variations and Partial Differential Equations 13(4) 519-536 Apr 2001 [Refereed]
Closed surfaces minimizing the bending energy under prescribed area and volume
Takeyuki Nagasawa and Izumi Takagi
Equadiff 99: Proceedings of the International Conference on Differential Equations Vol 1 561-563 Jan 2000 [Refereed]
On the location and profile of spike-layer solutions to a singularly perturbed semilinear Dirichlet problem: intermediate solutions
Wei-Ming Ni, Izumi Takagi, Juncheng Wei
Duke Mathematical Journal 94(3) 597-618 Jul 1998 [Refereed]
Spiky patterns and their stability in a reaction-diffusion system
Izumi Takagi
Proceedings of the Korea-Japan Partial Differential Equatios Conference (Taejon, 1996) Oct 1997
Singular behavior of least-energy solutions of a semilinear Neumann problem involving critical Sobolev exponents
TAKAGI Izumi
Duke Mathematical Journal 67(1) 1992 [Refereed]
Large amplitude stationary solutions to a chemotaxis system
C.-S. Lin, W.-M. Ni and Izumi Takagi
Journal of Differential Equations 72 1988 [Refereed]
On the Neumann problem for some semilinear elliptic equations and systems of activator-inhibitor type
TAKAGI Izumi
Transactions of the American Mathematical Society 297(1) 1986 [Refereed]
Point-condensation for a reaction-diffusion system
TAKAGI Izumi
Journal of Differential Equations 61 1986 [Refereed]
Stability of bifurcating solutions of the Gierer-Meinhardt system
TAKAGI Izumi
Tohoku Mathematical Journal 31 1979 [Refereed]
Misc
Equations of Pattern Formation
Izumi Takagi
Mathematical Sciences 49(3) 67-74 Feb 2011
Books etc
爆発と凝集
高木 泉（編者：柳田英二） (Part:Joint Work, 第２章（反応拡散系に現れる点凝集現象）５１頁〜９８頁)
東京大学出版会 Jan 2006
Conference Activities & Talks
Pattern formation in a reaction-diffusion system controlled by spatial heterogeneity
Variational Problems and Nonlinear Partial Differential Equations, 2016 23 Mar 2016
Role of mathematical models in developmental biology
HeKKSaGOn Winter School 2016, Kyoto--From Materials to Life: Multidisciplinary Challenges-- 15 Feb 2016
受容体・結合子反応モデルについての一考察
Turing 機構に関連するパターンとダイナミクス 19 Dec 2015
Reaction-diffusion system as pattern generator and applications to finger print patterns
Kolloquium, Georg-August Universitat Gottingen 13 Nov 2015
Role of spatial heterogeneity in reaction-diffusion system modeling biological pattern formation
Seminar, Scuola Normale Superiore 5 Nov 2015
Research Grants & Projects
Analysis of reaction-diffusion systems of activator-inhibitor type
Project Year: Sep 1984 - Today
Bifurcation analysis of differential geometric models of red blood cells
Project Year: Aug 1992 - Today
Social Contribution
仙台数学セミナー
[Others] Aug 2000 - Today
東北地区の高校生２０名を対象に合宿形式で数学の講義・セミナーをする．
現代数学講演会
[Others] 6 Dec 2007
川井数理科学財団主催の講師派遣事業「現代数学講演会」の一環として，宮城県第一女子校等学校において理数科２年生を対象に「生物の形づくりの数理」と題した講演を行った
宮城県仙台第二高等学校「一日大学」
[Others] 27 Oct 2005
出張講義「数学が社会において果たす役割」
