## 幾何コロキウム

開催情報 金曜日　10:00～11:30　数理科学研究科棟(駒場) 126号室 植田一石，金井雅彦，二木昭人 開始時間と開催場所などは変更されることがあるので, セミナーごとにご確認ください.

### 2012年12月05日(水)

10:30-12:00   数理科学研究科棟(駒場) 128号室

Maximal torus actions on complex manifolds (JAPANESE)
[ 講演概要 ]
We say that an effective action of a compact torus $T$ on a connected manifold $M$ is maximal if there is an orbit of dimension $2\\dim T-\\dim M$. In this talk, we give a one-to-one correspondence between the family of connected closed complex manifolds with maximal torus actions and the family of certain combinatorial objects, which is a generalization of the correspondence between complete nonsingular toric varieties and nonsingular complete fans. As an application, we construct a lot of concrete examples of non-K\\"{a}hler manifolds with maximal torus actions.