Combinatorial Seshadri stratifications on normal toric varieties
Algebraic Geometry
2025-05-06 v2 Combinatorics
Abstract
We apply the theory of Seshadri stratifications to embedded toric varieties associated with a normal lattice polytope . The approach presented here is purely combinatorial and completely independent of \cite{CFL}. In particular, we get a close connection between a certain class of triangulations of the polytope , Seshadri stratifications of arising from torus orbit closures, and the associated degenerate semi-toric varieties. In the last section we show that the approach here and the one in \cite{CFL} produce the same quasi-valuations and hence the same degenerations of .
Cite
@article{arxiv.2501.16161,
title = {Combinatorial Seshadri stratifications on normal toric varieties},
author = {Rocco Chirivì and Martina Costa Cesari and Xin Fang and Peter Littelmann},
journal= {arXiv preprint arXiv:2501.16161},
year = {2025}
}
Comments
v2: typo corrected, 31 pages, to appear in Journal of Algebra 60th anniversary volume