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Let $\text{X}$ denote a projective variety over an algebraically closed field on which a linear algebraic group acts with finitely many orbits. Then, a conjecture of Soergel and Lunts in the setting of Koszul duality and Langlands'…

Algebraic Geometry · Mathematics 2020-03-24 Roy Joshua

We identify thirteen isomorphism classes of indecomposable coisotropic relations between Poisson vector spaces and show that every coisotropic relation between finite-dimensional Poisson vector spaces may be decomposed as a direct sum of…

Symplectic Geometry · Mathematics 2016-11-17 Jonathan Lorand , Alan Weinstein

Linear categories naturally have several identification relations : isomorphisms, categorical equivalences and Morita equivalences. In this thesis, we construct the classifying stacks for these three relations ($\ukcatiso$, $\ukcateq$,…

Algebraic Geometry · Mathematics 2007-05-23 Mathieu Anel

We investigate the quantization problem of $(-1)$-shifted derived Poisson manifolds in terms of $\BV_\infty$-operators on the space of Berezinian half-densities. We prove that quantizing such a $(-1)$-shifted derived Poisson manifold is…

Symplectic Geometry · Mathematics 2023-08-09 Kai Behrend , Matt Peddie , Ping Xu

We show that a large class of finite dimensional pointed Hopf algebras is quasi-isomorphic to their associated graded version coming from the coradical filtration, i.e. they are 2-cocycle deformations of the latter. This supports a slightly…

Quantum Algebra · Mathematics 2007-05-23 Daniel Didt

We give an explicit finite-dimensional model for the derived moduli stack of flat connections on $\mathbb{C}^k$ with logarithmic singularities along a weighted homogeneous Saito free divisor. We investigate in detail the case of plane…

Algebraic Geometry · Mathematics 2023-01-04 Francis Bischoff

A factorization formula for certain automorphisms of a Poisson algebra associated to a quiver is proved, which involves framed versions of moduli spaces of quiver representations. This factorization formula is related to wall-crossing…

Representation Theory · Mathematics 2009-06-05 Markus Reineke

Projective cotangent bundles of complex manifolds are the local models of complex contact manifolds. Such bundles are quantized by the algebra of microdifferential operators (a localization of the algebra of differential operators on the…

Algebraic Geometry · Mathematics 2015-05-26 Andrea D'Agnolo , Pietro Polesello

This paper is devoted to the study of Morita equivalence for twisted Poisson manifolds. We review some Morita invariants and prove that integrable twisted Poisson manifolds which are gauge equivalent are Morita equivalent. Moreover, we…

Symplectic Geometry · Mathematics 2015-03-17 Yuji Hirota

We construct quadratic finite-dimensional Poisson algebras and their quantum versions related to rank N and degree one vector bundles over elliptic curves with n marked points. The algebras are parameterized by the moduli of curves. For N=2…

Exactly Solvable and Integrable Systems · Physics 2007-10-05 Yu. Chernyakov , A. M. Levin , M. Olshanetsky , A. Zotov

We consider existence and uniqueness of two kinds of coisotropic embeddings and deduce the existence of deformation quantizations of certain Poisson algebras of basic functions. First we show that any submanifold of a Poisson manifold…

Symplectic Geometry · Mathematics 2009-09-22 A. S. Cattaneo , M. Zambon

We construct symmetric monoidal higher categories of iterated Calabi-Yau cospans, that are noncommutative analogs of iterated lagrangian correspondences. We actually give a general (and functorial) procedure that applies to iterated…

Algebraic Topology · Mathematics 2024-10-24 Tristan Bozec , Damien Calaque , Sarah Scherotzke

We study the relationship between derived categories of factorizations on gauged Landau-Ginzburg models related by variations of the linearization in Geometric Invariant Theory. Under assumptions on the variation, we show the derived…

Algebraic Geometry · Mathematics 2014-05-14 Matthew Ballard , David Favero , Ludmil Katzarkov

A theory of dg schemes is developed so that it becomes a homotopy site, and the corresponding infinity category of stacks is equivalent to the infinity category of stacks, as constructed by Toen and Vezzosi, on the site of dg algebras whose…

Algebraic Geometry · Mathematics 2022-04-21 Dennis Borisov , Ludmil Katzarkov , Artan Sheshmani

In this paper we study the moduli stack of complexes of vector bundles (with chain isomorphisms) over a smooth projective variety $X$ via derived algebraic geometry. We prove that if $X$ is a Calabi-Yau variety of dimension $d$ then this…

Algebraic Geometry · Mathematics 2018-09-11 Zheng Hua , Alexander Polishchuk

Symplectic structures on higher objects like Lie groupoids have been studied for some time now, but not all of the proposed definitions are preserved under Morita equivalence of Lie groupoids, in turn giving rise to a consistent notion of…

Differential Geometry · Mathematics 2026-04-30 Milena Weiershausen

We utilize the coherent-constructible correspondence to construct full strongly exceptional collections of nef line bundles in the derived category of a toric variety through the combinatorics of constructible sheaves built from polytopes.…

Algebraic Geometry · Mathematics 2023-11-08 Mario Sanchez

We use shifted symplectic geometry to construct the Moore-Tachikawa topological quantum field theories (TQFTs) in a category of Hamiltonian schemes. Our new and overarching insight is an algebraic explanation for the existence of these…

Symplectic Geometry · Mathematics 2024-09-06 Peter Crooks , Maxence Mayrand

Given a crossed module $\chi$, we introduce Hopf $\chi$-(co)algebras which generalize Hopf algebras and Hopf group-(co)algebras. We interpret them as Hopf algebras in some symmetric monoidal category. We prove that their categories of…

Quantum Algebra · Mathematics 2024-03-19 Kursat Sozer , Alexis Virelizier

Let X be a smooth algebraic variety over a field of characteristic 0. We introduce the notion of twisted associative (resp. Poisson) deformation of the structure sheaf O_X. These are stack-like versions of usual deformations. We prove that…

Algebraic Geometry · Mathematics 2011-07-28 Amnon Yekutieli