The Geometric Arveson-Douglas Conjecture through Veronese Embeddings
Abstract
We prove invariance of the geometric Arveson-Douglas conjecture under Veronese embeddings of projective varieties. This provides new examples of singular varieties satisfying the conjecture. Furthermore, it reduces the conjecture to projective varieties whose defining ideals admit quadratic Gr{ö}bner bases, by keeping the same Schatten regularity thresholds. Our results lead to canonical examples of subproduct-systems whose Toeplitz algebras are not KK-equivalent to the complex numbers. Finally, we show that Douglas' fundamental class conjecture, asserting that the associated Toeplitz extension implements 𝕋-equivariant duality in KK-theory, is invariant under Veronese embeddings as well. While the latter result bootstraps the fundamental class conjecture, it also leads to infinitely many counterexamples.
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BibTeX
@misc{arici2026geometric,
title = {{The Geometric Arveson-Douglas Conjecture through Veronese Embeddings}},
author = {Francesca Arici and Yufan Ge and Dimitris Michail Gerontogiannis},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.09836},
eprint = {2610.09836},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.09836},
}
RIS
TY - UNPB
TI - The Geometric Arveson-Douglas Conjecture through Veronese Embeddings
AU - Francesca Arici
AU - Yufan Ge
AU - Dimitris Michail Gerontogiannis
PY - 2026
DA - 2026/10/07
PB - arXiv
DO - 10.48550/arxiv.2610.09836
UR - https://arxiv.org/abs/2610.09836
AB - We prove invariance of the geometric Arveson-Douglas conjecture under Veronese embeddings of projective varieties. This provides new examples of singular varieties satisfying the conjecture. Furthermore, it reduces the conjecture to projective varieties whose defining ideals admit quadratic Gr{ö}bner bases, by keeping the same Schatten regularity thresholds. Our results lead to canonical examples of subproduct-systems whose Toeplitz algebras are not KK-equivalent to the complex numbers. Finally, we show that Douglas' fundamental class conjecture, asserting that the associated Toeplitz extension implements 𝕋-equivariant duality in KK-theory, is invariant under Veronese embeddings as well. While the latter result bootstraps the fundamental class conjecture, it also leads to infinitely many counterexamples.
ER -