PreprintCC BY 4.0arXiv
On the support of double Grothendieck polynomials
Abstract
We prove that the support of every double Grothendieck polynomial is an Mnatural-convex set. Our main new tool is a rigidity result for the K-classes of multiprojective varieties with rational singularities.
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BibTeX
@misc{cidruiz2026support,
title = {{On the support of double Grothendieck polynomials}},
author = {Yairon Cid-Ruiz},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.30675},
eprint = {2609.30675},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.30675},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - On the support of double Grothendieck polynomials
AU - Yairon Cid-Ruiz
PY - 2026
DA - 2026/09/25
PB - arXiv
DO - 10.48550/arxiv.2609.30675
UR - https://arxiv.org/abs/2609.30675
AB - 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.
ER -