Program (Toric Topology 2021 in Osaka)
Time (Osaka, Seoul/ Shanghai/ Chennai/ Moscow/ Rennes/ St.John’s/ Toronto)

March 24th (Wednesday)
9:00–9:30/8:00–8:30/5:30–6:00/3:00–3:30/1:00–1:30/21:30–22:00 (23rd)/20:00–20:30 (23rd)

Yunhyung Cho (Sungkyunkwan University)
On string polytopes I
9:40–10:10/8:40–9:10/6:10–6:40/3:40–4:10/1:40–2:10/ 22:10–22:40 (23rd)/20:40–21:10 (23rd)

Lee, Eunjeong (IBS-CGP)
On string polytopes II
10:20–10:50/9:20–9:50/6:50–7:20/4:20–4:50/2:20–2:50/ 22:50–23:20 (23rd)/21:20–21:50 (23rd)

Taekgyu Hwang（Ajou University）
The Gromov width of toric manifolds associated with graphs
11:00–11:30/10:00–10:30/7:30–8:00/5:00–5:30/3:00–3:30/ 23:30–00:00 (23rd)/22:00–22:30 (23rd)

Tatsuya Horiguchi（OCAMI）
Hessenberg varieties and toric orbifolds
Break (1.5 hour)
13:00–13:30/12:00–12:30/9:30–10:00/7:00–7:30/5:00–5:30/ 1:30–2:00/23:30–00:00 (23rd)

Takahito Naito（Nippon Institute of Technology）
The rational string coproduct and the Hodge decomposition
13:40–14:10/12:40–13:10/10:10–10:40/7:40–8:10/5:40–6:10/ 2:10–2:40/00:10–00:40

Hiroaki Ishida（Kagoshima University）
Strong cohomological rigidity problem of a Hirzebruch surface bundle
14:20–14:50/13:20–13:50/10:50–11:20/8:20–8:50/6:20–6:50/ 2:50–3:20/00:50–01:20

Jingfang Lian（Fudan University）
The alpha invariant of twisted Milnor hypersurfaces
15:00–15:30/14:00–14:30/11:30–12:00/9:00–9:30/7:00–7:30/ 3:30–4:00/01:30–02:00

Seonjeong Park（Jeonju University）
Cohomological rigidity on Fano generalized Bott manifolds
15:40–16:10/14:40–15:10/12:10–12:40/9:40–10:10/7:40–8:10/ 4:10–4:40/02:10–02:40

Haozhi Zeng（Huazhong University of Science and Technology）
On Fano and weak Fano regular semisimple Hessenberg varieties
16:20–16:50/15:20–15:50/12:50–13:20/10:20–10:50/8:20–8:50/ 4:50–5:20/02:50–03:20

Mathieu Vallee（Universite de Rennes 1 and Ajou University）
Toward the classification of (real) toric manifolds of Picard number 4

March 25th (Thursday)

9:00–9:30/8:00–8:30/5:30–6:00/3:00–3:30/1:00–1:30/21:30–22:00 (24th)/20:00–20:30 (24th)

Ivan Limonchenko（University of Toronto）
On the secondary cohomology of moment-angle complexes
9:40–10:10/8:40–9:10/6:10–6:40/3:40–4:10/1:40–2:10/ 22:10–22:40 (24th)/20:40–21:10 (24th)

Jongbaek Song（KIAS）
Homotopy classification of 4-dimensional toric orbifolds
10:20–10:50/9:20–9:50/6:50–7:20/4:20–4:50/2:20–2:30/ 22:50–23:20 (24th)/21:20–21:50 (24th)

Hiraku Abe（Okayama University of Science）
On the integral cohomology ring of the Peterson variety
11:00–11:30/10:00–10:30/7:30–8:00/5:00–5:30/2:40–3:10/ 23:30–00:00 (24th)/22:00–22:30 (24th)Chen He（North China Electric Power University）
Equivariant formality of isotropy action on a homogeneous space with rank diﬀerence one

Break (1.5 hour)

13:00–13:30/12:00–12:30/9:30–10:00/7:00–7:30/5:00–5:30/ 1:30–2:00/23:30–00:00 (24th)

Daisuke Kishimoto（Kyoto University）
Tverberg’s theorem for cell complexes
13:40–14:10/12:40–13:10/10:10–10:40/7:40–8:10/5:40–6:10/ 2:10–2:40/00:10–00:40

Soumen Sarkar（Indian Institute of Technology Madras）
Generalized equivariant cohomology theory of weighted Grassmanns
14:20–14:50/13:20–13:50/10:50–11:20/8:20–8:50/6:20–6:50/ 2:50–3:20/00:50–01:20

Li Cai（Xi’an Jiaotong Liverpool University）
On the presentations of the commutator subgroup of a right-angled Coxeter group
15:00–15:30/14:00–14:30/11:30–12:00/9:00–9:30/7:00–7:30/ 3:30–4:00/01:30–02:00

Lisu Wu（Fudan University）
Orbifold Stiefel-Whitney classes of right-angled Coxeter orbifolds
15:40–16:10/14:40–15:10/12:10–12:40/9:40–10:10/7:40–8:10/ 4:10–4:40/02:10–02:40

Qifan Shen（Fudan University）
Lower bound for Buchstaber invariants of real universal complexes
16:20–16:50/15:20–15:50/12:50–13:20/10:20–10:50/8:20–8:50/ 4:50–5:20/02:50–03:20

Anton Ayzenberg（Higher School of Economics）
Clique complexes of multigraphs

March 26th (Friday)

9:00–9:30/8:00–8:30/5:30–6:00/3:00–3:30/1:00–1:30/21:30–22:00 (25th)/20:00–20:30 (25th)

Tom Baird（Memorial University of Newfoundland）
GKM-sheaves and equivariant cohomology
9:40–10:10/8:40–9:10/6:10–6:40/3:40–4:10/1:40–2:10/ 22:10–22:40 (25th)/20:40–21:10 (25th)Masahiro Takeda（Kyoto University）
Poincaré series of the spaces of commuting elements
10:20–10:50/9:20–9:50/6:50–7:20/4:20–4:50/2:20–2:50/ 22:50–23:20 (25th)/21:20–21:50 (25th)

Hitoshi Yamanaka（Naruto University of Education）
On the sign ambiguity in the equivariant cohomological rigidity for GKM graphs
11:00–11:30/10:00–10:30/7:30–8:00/5:00–5:30/3:00–3:30/ 23:30–00:00 (25th)/22:00–22:30 (25th)

Tomoo Matsumura（ICU）
Stability of Schubert varieties and Bott-Samelson resolutions

Break (1.5 hour)

13:00–13:30/12:00–12:30/9:30–10:00/7:00–7:30/5:00–5:30/ 1:30–2:00/23:30–00:00 (25th)

Donghoon Jang（Pusan National University）
Circle actions on almost complex manifolds with isolated fixed points
13:40–14:10/12:40–13:10/10:10–10:40/7:40–8:10/5:40–6:10/ 2:10–2:40/ 00:10–00:40

Uma Vikraman（Indian Institute of Technology Madras）
The equivariant cohomology ring of T ∗ (Cn )-modelled GKM graphs
14:20–14:50/13:20–13:50/10:50–11:20/8:20–8:50/6:20–6:50/ 2:50–3:20/ 00:50–01:20

Alastair Darby（Xi’an Jiaotong Liverpool University）
Pontryagin-Thom Construction(Cancel)Grigory Solomadin（Nikolskii’ Mathematical Institute RUDN）
Complex Adams invariants of sphere bundles associated to complex vector bundles over U -framed
quasitoric manifolds
15:00–15:30/14:00–14:30/11:30–12:00/9:00–9:30/7:00–7:30/ 3:30–4:00/ 01:30–02:00

Taras Panov（Moscow State University）
SU-bordism: geometric representatives, operations, multiplications and projections