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Related papers: Pre-Calabi-Yau structures and moduli of representa…

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We introduce the notions of shifted bisymplectic and shifted double Poisson structures on differential graded associative algebras, and more generally on non-commutative derived moduli functors with well-behaved cotangent complexes. For…

Algebraic Geometry · Mathematics 2025-02-03 J. P. Pridham

We give an explicit formula showing how the double Poisson algebra introduced in \cite{VdB} appears as a particular part of a pre-Calabi-Yau structure, i.e. cyclically invariant, with respect to the natural inner form, solution of the…

Rings and Algebras · Mathematics 2020-09-22 Natalia Iyudu , Maxim Kontsevich , Yannis Vlassopoulos

We introduce a notion generalizing Calabi-Yau structures on A-infinity algebras and categories, which we call pre-Calabi-Yau structures. This notion does not need either one of the finiteness conditions (smoothness or compactness) which are…

Algebraic Geometry · Mathematics 2024-11-11 Maxim Kontsevich , Alex Takeda , Yiannis Vlassopoulos

We elucidate the relation between smooth Calabi-Yau structures and pre-Calabi-Yau structures. We show that, from a smooth Calabi-Yau structure on an $A_\infty$-category $A$, one can produce a pre-Calabi-Yau structure on $A$; as defined in…

Algebraic Topology · Mathematics 2024-11-11 Maxim Kontsevich , Alex Takeda , Yiannis Vlassopoulos

We prove that the notion of a curved pre-Calabi--Yau algebra is equivalent to the notion of a curved homotopy double Poisson gebra, thereby settling the equivalence between the two ways to define derived noncommutative Poisson structures.…

Quantum Algebra · Mathematics 2025-10-14 Johan Leray , Bruno Vallette

We show that a Calabi-Yau structure of dimension $d$ on a smooth dg category $C$ induces a symplectic form of degree $2-d$ on the moduli space of objects $M_{C}$. We show moreover that a relative Calabi-Yau structure on a dg functor $C \to…

Algebraic Geometry · Mathematics 2019-01-01 Christopher Brav , Tobias Dyckerhoff

We show that relative Calabi--Yau structures on noncommutative moment maps give rise to (quasi-)bisymplectic structures, as introduced by Crawley-Boevey-Etingof-Ginzburg (in the additive case) and Van den Bergh (in the multiplicative case).…

Representation Theory · Mathematics 2024-02-27 Tristan Bozec , Damien Calaque , Sarah Scherotzke

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

In this article we prove that double quasi-Poisson algebras, which are non-commutative analogues of quasi-Poisson manifolds, naturally give rise to pre-Calabi-Yau algebras. This extends one of the main results in [11] (see also [10]), where…

Quantum Algebra · Mathematics 2021-11-18 David Fernández , Estanislao Herscovich

In this paper we deal with Calabi-Yau structures associated with (differential graded versions of) deformed multiplicative preprojective algebras, of which we provide concrete algebraic descriptions. Along the way, we prove a general result…

Representation Theory · Mathematics 2023-05-17 Tristan Bozec , Damien Calaque , Sarah Scherotzke

In this paper, we investigate pre-Calabi-Yau algebras and homotopy double Poisson algebras arising from homotopy Rota-Baxter structures. We introduce the notion of cyclic homotopy Rota-Baxter algebras, a class of homotopy Rota-Baxter…

Representation Theory · Mathematics 2026-04-23 Yufei Qin , Kai Wang

We write out explicit proper Calabi-Yau structures, i. e. non-degenerate cyclic cocycles on the differential graded categories of matrix factorizations of regular functions with isolated critical points. The formulas involve the Kapustin-Li…

Algebraic Geometry · Mathematics 2017-06-28 Dmytro Shklyarov

We describe the geometry of noncommutative deformations of local Calabi-Yau threefolds, showing that the choice of Poisson structure strongly influences the geometry of the quantum moduli space.

Algebraic Geometry · Mathematics 2025-09-03 Edoardo Ballico , Elizabeth Gasparim , Francisco Rubilar , Bruno Suzuki

We introduce a new type of noncommutative Poisson structure on associative algebras. It induces Poisson structures on the moduli spaces classifying semisimple modules. Path algebras of doubled quivers and preprojective algebras have…

Quantum Algebra · Mathematics 2007-05-23 William Crawley-Boevey

We introduce relative noncommutative Calabi-Yau structures defined on functors of differential graded categories. Examples arise in various contexts such as topology, algebraic geometry, and representation theory. Our main result is a…

Algebraic Geometry · Mathematics 2019-02-20 Christopher Brav , Tobias Dyckerhoff

We prove that multiplicative preprojective algebras, defined by Crawley-Boevey and Shaw, are 2-Calabi-Yau algebras, in the case of quivers containing unoriented cycles. If the quiver is not itself a cycle, we show that the center is…

Rings and Algebras · Mathematics 2023-05-03 Daniel Kaplan , Travis Schedler

In this paper we show that for a Koszul Calabi-Yau algebra, there is a shifted bi-symplectic structure in the sense of Crawley-Boevey-Etingof-Ginzburg, on the cobar construction of its co-unitalized Koszul dual coalgebra, and hence its DG…

Rings and Algebras · Mathematics 2020-05-13 Xiaojun Chen , Farkhod Eshmatov

Let $A$ be a Koszul (or more generally, $N$-Koszul) Calabi-Yau algebra. Inspired by the works of Kontsevich, Ginzburg and Van den Bergh, we show that there is a derived non-commutative Poisson structure on $A$, which induces a graded Lie…

Quantum Algebra · Mathematics 2017-01-24 Xiaojun Chen , Alimjon Eshmatov , Farkhod Eshmatov , Song Yang

In this article, we extend results of J. Leray and B. Vallette on homotopical properties of pre-Calabi-Yau algebras to the case of pre-Calabi-Yau categories. We give direct proofs of the results adapting techniques used by D. Petersen for…

Algebraic Topology · Mathematics 2023-10-31 Marion Boucrot

We prove $L_{\infty}$-formality for the higher cyclic Hochschild complex $\chH$ over free associative algebra or path algebra of a quiver. The $\chH$ complex is introduced as an appropriate tool for the definition of pre-Calabi-Yau…

Rings and Algebras · Mathematics 2020-11-25 Natalia Iyudu , Maxim Kontsevich
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