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We explain how to translate several recent results in derived algebraic geometry to derived differential geometry. These concern shifted Poisson structures on NQ-manifolds, Lie groupoids, smooth stacks and derived generalisations, and…

Differential Geometry · Mathematics 2025-10-06 J. P. Pridham

This paper presents a preliminary version of the deformation theory of expressions of elements of algebras. The notion of *-functions is given. Several important problems appear in simplified forms, and these give an intuitive bird's-eye of…

Mathematical Physics · Physics 2011-04-13 Hideki Omori , Yoshiaki Maeda , Naoya Miyazaki , Akira Yoshioka

We develop the Lie theory of Lie-admissible algebras whose product is enriched with higher operations modeled on directed graphs with a view to apply it to the deformation theories controlled by this kind of Lie algebras. We produce…

Quantum Algebra · Mathematics 2025-10-10 Ricardo Campos , Bruno Vallette

In this review an overview on some recent developments in deformation quantization is given. After a general historical overview we motivate the basic definitions of star products and their equivalences both from a mathematical and a…

Quantum Algebra · Mathematics 2015-02-03 Stefan Waldmann

This paper is devoted to deformations of Lagrangian submanifolds contained in the singular locus of a log-symplectic manifold. We prove a normal form result for the log-symplectic structure around such a Lagrangian, which we use to extract…

Symplectic Geometry · Mathematics 2021-12-14 Stephane Geudens , Marco Zambon

We prove explit formulas for the decomposition of a differential graded Lie algebra into a minimal and a linear $L_\infty$-algebra. We define a category of metric $L_\infty$-algebras, called Palamodov $L_\infty$ algebras, where the…

Quantum Algebra · Mathematics 2007-05-23 Frank Schuhmacher

We derive algebraic recurrence relations to obtain a deformation quantization with separation of variables for a locally symmetric K\"ahler manifold. This quantization method is one of the ways to perform a deformation quantization of…

Mathematical Physics · Physics 2020-07-07 Kentaro Hara , Akifumi Sako

In this notes, we study some basic deformation of A-infinity algebra. It includes a two-dimensional rescaling deformation and the Maurer-Cartan element or bounding cochain deformation used in Lagrangian Floer Homology theory. We show that…

Quantum Algebra · Mathematics 2013-10-15 Jie Zhao

We describe a deformation quantization of a modification of Poisson geometry by a closed 3-form. Under suitable conditions it gives rise to a stack of algebras. The basic object used for this aim is a kind of families of Poisson structures…

Quantum Algebra · Mathematics 2007-05-23 Pavol Severa

A quantization of classical deformation theory, based on the Maurer-Cartan Equation $dS + \frac{1}{2}[S,S] = 0$ in dg-Lie algebras, a theory based on the Quantum Master Equation $dS + \hbar \Delta S + \frac{1}{2} \{S,S\} = 0$ in…

Quantum Algebra · Mathematics 2018-07-09 Alexander A. Voronov

The aim of this paper is to extend Gerstenhaber formal deformations of algebras to the case of Hom-Alternative and Hom-Malcev algebras. We construct deformation cohomology groups in low dimensions. Using a composition construction, we give…

Rings and Algebras · Mathematics 2010-06-15 Mohamed Elhamdadi , Abdenacer Makhlouf

Curved A-infinity algebras appear in nature as deformations of dg algebras. We develop the basic theory of curved A-infinity algebras and, in particular, curved dg algebras. We investigate their link with a suitable class of dg coalgebras…

Representation Theory · Mathematics 2010-10-05 Pedro Nicolas

Second quantization of a classical nonrelativistic one-particle system as a deformation quantization of the Schrodinger spinless field is considered. Under the assumption that the phase space of the Schrodinger field is $C^{\infty}$, both,…

High Energy Physics - Theory · Physics 2008-11-26 H. Garcia-Compean , J. F. Plebanski , M. Przanowski , F. J. Turrubiates

We consider in this paper an area functional defined on submanifolds of fixed degree immersed into a graded manifold equipped with a Riemannian metric. Since the expression of this area depends on the degree, not all variations are…

Differential Geometry · Mathematics 2021-12-21 Giovanna Citti , Gianmarco Giovannardi , Manuel Ritoré

We give an explicit construction of a deformation quantization of the algebra of functions on a Poisson manifolds, based on Kontsevich's local formula. The deformed algebra of functions is realized as the algebra of horizontal sections of a…

Quantum Algebra · Mathematics 2008-01-29 Alberto S. Cattaneo , Giovanni Felder , Lorenzo Tomassini

We study modules over the algebroid stack $\W[\stx]$ of deformation quantization on a complex symplectic manifold $\stx$ and recall some results: construction of an algebra for $\star$-products, existence of (twisted) simple modules along…

Quantum Algebra · Mathematics 2007-06-20 Pierre Schapira

All deformations of two dimensional centrally extended Galilei group are classified. The corresponding quantum Lie algebras are found.

Quantum Algebra · Mathematics 2011-09-22 Anna Opanowicz

With the help of the Seiberg-Witten map for photons and fermions we define a theta-deformed QED at the classical level. Two possibilities of gauge-fixing are discussed. A possible non-Abelian extension for a pure theta-deformed Yang-Mills…

High Energy Physics - Theory · Physics 2007-05-23 A. A. Bichl , J. M. Grimstrup , L. Popp , M. Schweda , R. Wulkenhaar

In this paper we develop the basic infinitesimal deformation theory of abelian categories. This theory yields a natural generalization of the well-known deformation theory of algebras developed by Gerstenhaber. As part of our deformation…

Category Theory · Mathematics 2007-05-23 Wenty T. Lowen , Michel Van den Bergh

The goal of this note is to describe a class of formal deformations of a symplectic manifold $M$ in the case when the base ring of the deformation problem involves parameters of non-positive degrees. The interesting feature of such…

Quantum Algebra · Mathematics 2018-09-07 Elif Altinay-Ozaslan , Vasily Dolgushev
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