Abstract:
We investigate the mod $p$ Buchstaber invariant of the skeleta of simplices for a prime number $p$ and compare them for different values of $p$. For $p=2$, the invariant is the real Buchstaber invariant. Our findings reveal that these values are generally distinct. Additionally, we determine or estimate the mod $p$ Buchstaber invariants of certain universal simplicial complexes $X(\mathbb F_p^n)$.
Keywords:Buchstaber invariant, simplicial complex, the universal complex, toric topology.
All three authors were partially supported by the bilateral project ‘Discrete Morse theory and its applications’ funded by the Ministry of Education and Science of the Republic of Serbia and the Ministry of Education, Science and Sport of the Republic of Slovenia as a part of bilateral cooperation between two countries (2020-2021). The second author was supported by the Slovenian Research and Innovation Agency program P1-0292 and the grant J1-4031.
Citation:
D. B. Baralić, A. Vavpetič, A. Vučić, “Mod $p$ Buchstaber invariant”, Topology, Geometry, Combinatorics, and Mathematical Physics, Collected papers. Dedicated to Victor Matveevich Buchstaber on the occasion of his 80th birthday, Trudy Mat. Inst. Steklova, 326, Steklov Math. Inst., Moscow, 2024, 26–42