2 papers
math.AT2026
Chamber Decompositions of Moment Polytopes for Torus Actions of Positive Complexity
Matvey Sergeev
The present work develops the results of the series of papers by Buchstaber and TerziÄ on the standard actions of the compact torus on the complex Grassmann manifo…
math.AT2024
Bier spheres and toric topology
Ivan Limonchenko, Matvey Sergeev
We compute the real and complex Buchstaber numbers of an arbitrary Bier sphere. In dimension two, we identify all the 13 different combinatorial types of Bier spheres and show that…