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 …

Stability conditions on Kuznetsov components

A Bayer, M Lahoz, E Macrì, P Stellari - arXiv preprint arXiv:1703.10839, 2017 - arxiv.org
We introduce a general method to induce Bridgeland stability conditions on semiorthogonal
components of triangulated categories. In particular, we prove the existence of Bridgeland …

Hyper-kähler manifolds

O Debarre - Milan Journal of Mathematics, 2022 - Springer
The aim of this introductory survey is to acquaint the reader with important objects in
complex algebraic geometry: K3 surfaces and their higher-dimensional analogs, hyper …

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 …

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 …

Categorical Torelli theorems: results and open problems

L Pertusi, P Stellari - Rendiconti del Circolo Matematico di Palermo Series …, 2023 - Springer
We survey some recent results concerning the so called Categorical Torelli problem. This is
to say how one can reconstruct a smooth projective variety up to isomorphism, by using the …

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 …

Stability conditions and moduli spaces for Kuznetsov components of Gushel–Mukai varieties

A Perry, L Pertusi, X Zhao - Geometry & Topology, 2023 - msp.org
We prove the existence of Bridgeland stability conditions on the Kuznetsov components of
Gushel–Mukai varieties, and describe the structure of moduli spaces of Bridgeland …

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 …

Elliptic quintics on cubic fourfolds, O'Grady 10, and Lagrangian fibrations

C Li, L Pertusi, X Zhao - Advances in Mathematics, 2022 - Elsevier
For a smooth cubic fourfold Y, we study the moduli space M of semistable objects of Mukai
vector 2 λ 1+ 2 λ 2 in the Kuznetsov component of Y. We show that with a certain choice of …