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Extra Form
강연자 Koji Fujiwara
소속 Kyoto Univ.
date 2016-05-12

A function from a group G to integers Z is called a quasi-morphism if there is a constant C such that for all g and h in G, |f(gh)-f(g)-f(h)| < C. Surprisingly, this idea has been useful.

I will overview the theory of quasi-morphisms including applications.

Then we discuss a recent work with M.Kapovich when we replace the target group from Z to a non-commutative group, for example, a free group.


Atachment
첨부 '1'
List of Articles
카테고리 제목 소속 강연자
수학강연회 <학부생을 위한 ɛ 강연> Secure computation: Promise and challenges file 송용수 <학부생을 위한 ɛ 강연> Secure computation: Promise and challenges
수학강연회 Fano manifolds of Calabi-Yau Type file 서울대학교 Atanas Iliev
수학강연회 Sums of squares in quadratic number rings file Univ. of Kentucky David Leep
수학강연회 Entropies on covers of compact manifolds file CNRS (France) François Ledrappier
수학강연회 Quantum Dynamics in the Mean-Field and Semiclassical Regime file Ecole Polytechnique Francoise Golse
수학강연회 Random walks in spaces of negative curvature file Yale Univ. Giulio Tiozzo
수학강연회 The Shape of Data file Stanford University Gunnar E. Carlsson
수학강연회 The significance of dimensions in mathematics file Kyoto Univ./서울대학교 Heisuke Hironaka
수학강연회 Topological aspects in the theory of aperiodic solids and tiling spaces file Georgia Institute of Technology, School of Mathematics and School of Physics Jean V. Bellissard
수학강연회 Noncommutative Surfaces file 서강대학교 Jens Hoppe
수학강연회 Conformal field theory and noncommutative geometry file 동경대학교 Kawahigashi
수학강연회 Faithful representations of Chevalley groups over quotient rings of non-Archimedean local fields file Univ. Bremen Keivan Mallahi-Karai
수학강연회 Analytic torsion and mirror symmetry file Kyoto University Ken-ichi Yoshikawa
수학강연회 Deformation spaces of Kleinian groups and beyond file Osaka University Kenichi Ohshika
수학강연회 A-infinity functor and topological field theory file Simons Center for Geometry and Physics Kenji Fukaya
수학강연회 Number theoretic results in a family file Univ. of Toronto / KIAS Kim, Henry
수학강연회 Quasi-homomorphisms into non-commutative groups file Kyoto Univ. Koji Fujiwara
수학강연회 Conservation laws and differential geometry file Univ. of Wisconsin Marshall Slemrod
수학강연회 The classification of fusion categories and operator algebras file Kyoto University Masaki Izumi
수학강연회 Sheaf quantization of Hamiltonian isotopies and non-displacability problems file Kyoto Univ./서울대학교 Masaki Kashiwara
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