Skip navigation

상단메뉴

글로벌메뉴

좌측메뉴

학술행사

검색

Seminars

Seminar
FIELD Math:Topology
DATE February 04 (Fri), 2022
TIME 15:00-16:00
PLACE Online
SPEAKER Orita, Ryuma
HOST Choa, Dongwook
INSTITUTE Niigata University
TITLE [GS_M_Topo]A Hierarchy of Rigid Subsets of Symplectic Manifolds
ABSTRACT In this talk, we discuss a hierarchy of intersection rigidity properties of subsets of symplectic manifolds. We introduce the notion of pseudoheaviness of closed subsets of symplectic manifolds and prove the existence of pseudoheavy fibers of moment maps. In particular, we generalize Entov and Polterovich’s theorem, which ensures the existence of non-displaceable fibers. As its application, we provide a partial answer to a problem posed by them, which asks the existence of heavy fibers.
FILE  
  • list

date

~