Stability conditions in families

A Bayer, M Lahoz, E Macrì, H Nuer, A Perry… - … mathématiques de l' …, 2021 - Springer
We develop a theory of Bridgeland stability conditions and moduli spaces of semistable
objects for a family of varieties. Our approach is based on and generalizes previous work by …

The integral Hodge conjecture for two-dimensional Calabi–Yau categories

A Perry - Compositio Mathematica, 2022 - cambridge.org
We formulate a version of the integral Hodge conjecture for categories, prove the conjecture
for two-dimensional Calabi–Yau categories which are suitably deformation equivalent to the …

Moduli spaces of stable objects in Enriques categories

A Perry, L Pertusi, X Zhao - arXiv preprint arXiv:2305.10702, 2023 - arxiv.org
We study moduli spaces of stable objects in Enriques categories by exploiting their relation
to moduli spaces of stable objects in associated K3 categories. In particular, we settle the …

Derived categories of hearts on Kuznetsov components

C Li, L Pertusi, X Zhao - Journal of the London Mathematical …, 2023 - Wiley Online Library
We prove a general criterion that guarantees that an admissible subcategory KK of the
derived category of an abelian category is equivalent to the bounded derived category of the …

Kuznetsov's Fano threefold conjecture via K3 categories and enhanced group actions

A Bayer, A Perry - Journal für die reine und angewandte Mathematik …, 2023 - degruyter.com
We settle the last open case of Kuznetsov's conjecture on the derived categories of Fano
threefolds. Contrary to the original conjecture, we prove the Kuznetsov components of …

Some remarks on Fano three-folds of index two and stability conditions

L Pertusi, S Yang - International Mathematics Research Notices, 2022 - academic.oup.com
We prove that ideal sheaves of lines in a Fano three-fold of Picard rank one and index two
are stable objects in the Kuznetsov component, with respect to the stability conditions …

Descent conditions for generation in derived categories

P Lank - Journal of Pure and Applied Algebra, 2024 - Elsevier
This work establishes a condition that determines when strong generation in the bounded
derived category of a Noetherian J-2 scheme is preserved by the derived pushforward of a …

The generalized Franchetta conjecture for some hyper-Kähler varieties, II

L Fu, R Laterveer, C Vial - Journal de l'École polytechnique …, 2021 - numdam.org
We prove the generalized Franchetta conjecture for the locally complete family of hyper-
Kähler eightfolds constructed by Lehn–Lehn–Sorger–van Straten (LLSS). As a corollary, we …

Stability conditions on Kuznetsov components of Gushel–Mukai threefolds and Serre functor

L Pertusi, E Robinett - Mathematische Nachrichten, 2023 - Wiley Online Library
We show that the stability conditions on the Kuznetsov component of a Gushel–Mukai
threefold, constructed by Bayer, Lahoz, Macrì and Stellari, are preserved by the Serre …

[PDF][PDF] Serre-invariant stability conditions and Ulrich bundles on cubic threefolds

S Feyzbakhsh, L Pertusi - Épijournal de Géométrie …, 2023 - epiga.episciences.org
arXiv:2109.13549v4 [math.AG] 24 Jan 2023 Page 1 Épijournal de Géométrie Algébrique
epiga.episciences.org Volume 7 (2023), Article No. 1 Serre-invariant stability conditions and …