수학과

2014-1학기 제1회 수학과 colloquium 일정을 아래와 같이 안내해 드리오니 많은 관심과 참여 부탁드립니다.

    [2014학년도 1학기 제1회 수학과 Colloquium]

  강연제목: Root systems of torus graphs

  연      사: Shinataro Kuroki 박사 [Osaka City university Advanced Mathematical Institute]

  일      시: 3월 21일 (금요일) 오후 5:00 - 6:00

  장      소: 팔달관 621호

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강연초록

Torus graph is introduced by Maeda-Masuda-Panov as a (partially generalized) GKM graph of torus manifolds. Here, torus manifold is an even dimensional manifold which has a half-dimensional torus action with fixed points. This was introduced by Hattori-Masuda as a topological generalization of toric manifolds. Motivating the study of automorphism groups of tours manifolds, in this talk, we introduce the root systems of torus graphs and apply it to find what kind of compact Lie group acts on torus manifolds. This is joint work with Mikiya Masuda.