Monodromy and birational geometry of O'Grady's sixfolds

G Mongardi, A Rapagnetta - Journal de mathématiques pures et …, 2021 - Elsevier
We prove that the bimeromorphic class of a hyperkähler manifold deformation equivalent to
O'Grady's six dimensional one is determined by the Hodge structure of its Beauville …

Birational geometry of irreducible holomorphic symplectic tenfolds of O'Grady type

G Mongardi, C Onorati - Mathematische Zeitschrift, 2022 - Springer
Birational geometry of irreducible holomorphic symplectic tenfolds of O’Grady type |
Mathematische Zeitschrift Skip to main content SpringerLink Account Menu Find a journal …

The monodromy of generalized Kummer varieties and algebraic cycles on their intermediate Jacobians

E Markman - Journal of the European Mathematical Society, 2022 - ems.press
We compute the subgroup of the monodromy group of a generalized Kummer variety
associated to equivalences of derived categories of abelian surfaces. The result was …

On the monodromy group of desingularised moduli spaces of sheaves on K3 surfaces

C Onorati - arXiv preprint arXiv:2002.04129, 2020 - arxiv.org
arXiv:2002.04129v5 [math.AG] 24 Jun 2022 Page 1 arXiv:2002.04129v5 [math.AG] 24 Jun 2022
ON THE MONODROMY GROUP OF DESINGULARISED MODULI SPACES OF SHEAVES ON …

[HTML][HTML] On the transcendental lattices of Hyper-Kähler manifolds

B Piroddi, ÁDR Ortiz - Journal of Pure and Applied Algebra, 2025 - Elsevier
We introduce the notion of a Hyper-Kähler manifold X induced by a Hodge structure of K3-
type. We explore this notion for the known deformation types of Hyper-Kähler manifolds …

Birational geometry of the moduli space of quartic surfaces

R Laza, K O'Grady - Compositio Mathematica, 2019 - cambridge.org
By work of Looijenga and others, one understands the relationship between Geometric
Invariant Theory (GIT) and Baily–Borel compactifications for the moduli spaces of degree …

Wall divisors and algebraically coisotropic subvarieties of irreducible holomorphic symplectic manifolds

A Knutsen, M Lelli-Chiesa, G Mongardi - Transactions of the American …, 2019 - ams.org
Rational curves on Hilbert schemes of points on $ K3 $ surfaces and generalised Kummer
manifolds are constructed by using Brill–Noether theory on nodal curves on the underlying …

Prime order isometries of unimodular lattices and automorphisms of ihs manifolds

S Brandhorst, A Cattaneo - International Mathematics Research …, 2023 - academic.oup.com
We characterize conjugacy classes of isometries of odd prime order in unimodular-lattices.
This is applied to give a complete classification of odd prime order non-symplectic …

Hilbert schemes of surfaces are dense in moduli

E Markman, S Mehrotra - Mathematische Nachrichten, 2017 - Wiley Online Library
We prove that the locus of Hilbert schemes of n points on a projective K3 surface is dense in
the moduli space of irreducible holomorphic symplectic manifolds of that deformation type …

Monodromy invariants and polarization types of generalized Kummer fibrations

B Wieneck - Mathematische Zeitschrift, 2018 - Springer
In this paper a monodromy invariant for isotropic classes on generalized Kummer type
manifolds is constructed. This invariant is used to determine the polarization type of …