Toric Topology 2021 in Osaka

Toric Topology 2021 in Osaka is aimed to present recent achievements in toric topology and related topics, and to discuss perspectives of further researches. The conference is supported by OCAMI.

Date: March 24(Wed)--March 26(Fri), 2021
Venue: Osaka City University (online)

The conference was successfully finished. The organizers would like to thank all participants and GT center for supporting the conference.
Photo1(24th) Photo2(24th) Photo3(25th) Photo4(25th) Photo5(26th) Photo6(26th)
Program: pdf(with local time zone)

24th (Wednesday)

9:00-9:30 Cho, Yunhyung (Sungkyunkwan University)
On string polytopes I (slide)
9:40-10:10 Lee, Eunjeong (IBS-CGP)
On string polytopes II (slide)
10:20-10:50 Hwang, Taekgyu (Ajou University)
The Gromov width of toric manifolds associated with graphs (slide)
11:00-11:30 Horiguchi, Tatsuya (OCAMI)
Hessenberg varieties and toric orbifolds (slide)
11:30-13:00 Lunch time
13:00-13:30 Naito, Takahito (Nippon Institute of Technology)
The rational string coproduct and the Hodge decomposition (slide)
13:40-14:10 Ishida, Hiroaki (Kagoshima University)
Strong cohomological rigidity problem of a Hirzebruch surface bundle (slide)
14:20-14:50 Lian, Jingfang (Fudan University)
The alpha invariant of twisted Milnor hypersurfaces (slide)
15:00-15:30 Park, Seonjeong (Jeonju University)
Cohomological rigidity on Fano generalized Bott manifolds (slide)
15:40-16:10 Zeng, Haozhi (Huazhong University of Science and Technology)
On Fano and weak Fano regular semisimple Hessenberg varieties (slide)
16:20-16:50 Vallee, Mathieu (Universite de Rennes 1 and Ajou University)
Toward the classification of (real) toric manifolds of Picard number 4 (slide)

25th (Thursday)

9:00-9:30 Limonchenko, Ivan (University of Toronto)
On the secondary cohomology of moment-angle complexes (slide)
9:40-10:10 Song, Jongbaek (KIAS)
Homotopy classification of 4-dimensional toric orbifolds (slide)
10:20-10:50 Abe, Hiraku (Okayama University of Science)
On the integral cohomology ring of the Peterson variety (slide)
11:00-11:30 He, Chen (North China Electric Power University)
Equivariant formality of isotropy action on a homogeneous space with rank difference one (slide)
11:30-13:00 Lunch time
13:00-13:30 Kishimoto, Daisuke (Kyoto University)
Tverberg's theorem for cell complexes (slide)
13:40-14:10 Sarkar, Soumen (Indian Institute of Technology Madras)
Generalized equivariant cohomology theory of weighted Grassmanns (slide)
14:20-14:50 Cai, Li (Xi'an Jiaotong Liverpool University)
On the presentations of the commutator subgroup of a right-angled Coxeter group (slide)
15:00-15:30 Wu, Lisu (Fudan University)
Orbifold Stiefel-Whitney classes of right-angled Coxeter orbifolds (slide)
15:40-16:10 Shen, Qifan (Fudan University)
Lower bound for Buchstaber invariants of real universal complexes (slide)
16:20-16:50 Ayzenberg, Anton (Higher School of Economics)
Clique complexes of multigraphs (slide)

26th (Friday)

9:00-9:30 Baird, Tom (Memorial University of Newfoundland)
GKM-sheaves and equivariant cohomology (slide)
9:40-10:10 Takeda, Masahiro (Kyoto University)
Poincare series of the spaces of commuting elements (slide)
10:20-10:50 Yamanaka, Hitoshi (Naruto University of Education)
On the sign ambiguity in the equivariant cohomological rigidity for GKM graphs (slide)
11:00-11:30 Matsumura, Tomoo (ICU)
Stability of Schubert varieties and Bott-Samelson resolutions (slide)
11:30-13:00 Lunch time
13:00-13:30 Jang, Donghoon (Pusan National University)
Circle actions on almost complex manifolds with isolated fixed points (slide)
13:40-14:10 Uma, Vikraman (Indian Institute of Technology Madras)
The equivariant cohomology ring of T^{*}(C^{n})-modelled GKM graphs (slide)
14:20-14:50 Darby, Alastair (Xi'an Jiaotong Liverpool University)
Pontryagin-Thom Construction (slide)
(Cancel) Solomadin, Grigory (Nikolskii' Mathematical Institute RUDN)
Complex Adams invariants of sphere bundles associated to complex vector bundles over $U$-framed quasitoric manifolds
15:00-15:30 Panov, Taras (Moscow State University)
SU-bordism: geometric representatives, operations, multiplications and projections (slide)

Previous meetings:
Workshop for Young Researchers (Nov. 22, 2019)
Toric Topology 2019 in Okayama (Nov. 18-21, 2019)
Toric Topology 2017 in Osaka (Dec. 11-15, 2017)
Toric Topology 2016 in Kagoshima (Apr. 19-22, 2016)
Toric Topology Workshop 2016 (Apr. 11, 2016)
Toric Topology 2015 in Osaka (Jun. 16-19, 2015)
Toric Topology 2014 in Osaka (Jan. 21-24, 2014)
Toric Topology 2012 in Osaka (Nov. 16-19, 2012)
Toric Topology 2011 in Osaka (Nov. 28-30, 2011)

Organizers: Shintaro Kuroki (Okayama U of Science)
  Mikiya Masuda (Osaka City University)