Year: 2026
Type: preprint
Abstract: We prove that the support of every double Grothendieck polynomial is an $M^\natural$-convex set. Our main new tool is a rigidity result for the $K$-classes of multiprojective varieties with rational singularities.
Source: arXiv (Cornell University)
Author: Cid-Ruiz, Yairon
Language: English
Subfield: Discrete Mathematics and Combinatorics
Field: Mathematics
Domain: Physical Sciences
Open Access status: green
Funder: National Science Foundation
OpenAlex ID: W7214646816