Hessenberg 集会 2018 in Osaka

10:00 - 11:00 Hiraku Abe (Osaka Prefecture University)

Introduction to Hessenberg varieties

11:20 - 12:20 Haozhi Zeng (Huazhong University of Science and Technology)

On Fano and weak Fano Hessenberg varieties

(Lunch break)

14:00 - 15:00 Anatol Kirillov (RIMS)

On generalized cohomology theories of nilpotent Hessenberg varieties

15:30 - 16:30 Anton Ayzenberg (National Research University Higher School of Economics)

Torus actions on manifolds of isospectral Hermitian matrices

17:00 - 18:00 Takeshi Ikeda (Okayama University of Science)

K-theoretic Peterson isomorphism and its applications

10:00 - 11:00 Takuro Abe (Kyushu University)

Hessenberg varieties and hyperplane arrangements

11:20 - 12:20 Naoki Fujita (Tokyo Institute of Technology)

Algebro-geometric aspects of regular Hessenberg varieties and their families

(Lunch break)

14:00 - 15:00 Tomoo Matsumura (Okayama University of Science)

Degeneracy loci and Hessenberg varieties in type C

15:30 - 16:30 Masashi Noji / Kazuaki Ogiwara (Osaka City University)

Smooth torus orbit closures in the Grassmannians

17:00 - 18:00 Seonjeong Park (Ajou University)

Toric Richardson varieties

<< Social dinner >>

10:00 - 11:00 Satoshi Murai (Waseda University)

Is there a good additive basis for cohomology rings of regular nilpotent Hessenberg variety

11:20 - 12:20 Tatsuya Horiguchi (Osaka University)

The problem of a basis of the cohomology ring of a regular nilpotent Hessenberg variety

(Lunch break)

13:30 - 14:30 Takashi Sato (Osaka City University)

On coinvariant rings of pseudo-reflection groups

15:00 - 16:00 Vladislav Cherepanov (National Research University Higher School of Economics)

The torus actions of complexity 1 and manifolds of isospectral Hermitian matrices.