PreprintCC BY 4.0arXiv
G0 of complete split toric varieties
Abstract
We compute the Grothendieck group of coherent sheaves for complete split toric surfaces having a smooth 2-dimensional cone in its fan. We show that it is free abelian, of rank equal to the number of rays in the fan. We give a partial generalization of this to all complete split toric varieties.
Related
- K2-regularity is equivalent to smoothness for toric varieties
- Holomorphic polyvector fields on toric varieties via Klyachko filtrations
- There are no unexpected toric positroid varieties
- On everywhere locally soluble varieties in families over toric bases
- Obstructions to embedding singular curves in toric varieties
BibTeX
@misc{shen2026complete,
title = {{$G_0$ of complete split toric varieties}},
author = {Zeyu Shen},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.32831},
eprint = {2610.32831},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.32831},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - G_0 of complete split toric varieties
AU - Zeyu Shen
PY - 2026
DA - 2026/10/23
PB - arXiv
DO - 10.48550/arxiv.2610.32831
UR - https://arxiv.org/abs/2610.32831
AB - We compute the Grothendieck group of coherent sheaves for complete split toric surfaces having a smooth 2-dimensional cone in its fan. We show that it is free abelian, of rank equal to the number of rays in the fan. We give a partial generalization of this to all complete split toric varieties.
ER -