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A model of 3-dimensional topological quantum field theory is rigorously constructed. The results are applied to an explicit formula for deformation quantization of any finite-dimensional Lie bialgebra over the field of complex numbers. This…

Quantum Algebra · Mathematics 2007-05-23 Boris Shoikhet

We compute the homotopy derivations of the properads governing even and odd Lie bialgebras as well as involutive Lie bialgebras. The answer may be expressed in terms of the Kontsevich graph complexes. In particular, this shows that the…

Quantum Algebra · Mathematics 2015-12-17 Sergei Merkulov , Thomas Willwacher

In "Lie infinity algebras and higher analogues of Dirac structures and Courant algebroids" [arXiv:1003.1004], Marco Zambon constructs an $L_\infty$-algebra associated with any higher standard or twisted Courant algebroid (also known as a…

Symplectic Geometry · Mathematics 2026-02-17 Domenico Fiorenza , Antonio Michele Miti

We show that deformations of a coisotropic submanifold inside a fibrewise entire Poisson manifold are controlled by the $L_\infty$-algebra introduced by Oh-Park (for symplectic manifolds) and Cattaneo-Felder. In the symplectic case, we…

Symplectic Geometry · Mathematics 2015-06-05 Florian Schaetz , Marco Zambon

This is the first in a series of articles devoted to deformation quantization of gerbes. Here we give basic definitions and interpret deformations of a given gerbe as Maurer-Cartan elements of a differential graded Lie algebra (DGLA). We…

Quantum Algebra · Mathematics 2007-05-23 P. Bressler , A. Gorokhovsky , R. Nest , B. Tsygan

By analytic deformations of complex structures, we mean perturbations of the Dolbeault operator. By algebraic deformations of complex structures, we mean deformations of holomorphic glueing data. For complex manifolds there is,…

Algebraic Geometry · Mathematics 2019-11-19 Kowshik Bettadapura

First three sections of this overview paper cover classical topics of deformation theory of associative algebras and necessary background material. We then analyze algebraic structures of the Hochschild cohomology and describe the relation…

Algebraic Geometry · Mathematics 2009-09-09 M. Doubek , M. Markl , P. Zima

Fialowski and Schlichenmaier constructed examples of global deformations of Lie algebras of vector fields from deforming the underlying variety. We formulate their approach in a conceptual way. Namely, we construct a stack of deformations…

Algebraic Geometry · Mathematics 2009-11-13 Friedrich Wagemann

The deformations of an infinite dimensional algebra may be controlled not just by its own cohomology but by that of an associated diagram of algebras, since an infinite dimensional algebra may be absolutely rigid in the classical…

Quantum Algebra · Mathematics 2012-08-28 Murray Gerstenhaber , Anthony Giaquinto

We discuss a new class of strong homotopy algebras constructed via inner deformations. Such deformations have a number of remarkable properties. In the simplest case, every one-parameter family of associative algebras leads to an…

High Energy Physics - Theory · Physics 2022-05-03 Alexey Sharapov , Evgeny Skvortsov

Algebraic scheme for constructing deformations of structure constants for associative algebras generated by a deformation driving algebras (DDAs) is discussed. An ideal of left divisors of zero plays a central role in this construction.…

Rings and Algebras · Mathematics 2009-05-12 B. G. Konopelchenko

We present a deformation theory approach to the classification of kinematical Lie algebras in 3+1 dimensions and present calculations leading to the classifications of all deformations of the static kinematical Lie algebra and of its…

High Energy Physics - Theory · Physics 2018-07-04 José M. Figueroa-O'Farrill

The Maurer-Cartan algebra of a Lagrangian $L$ is the algebra that encodes the deformation of the Floer complex $CF(L,L;\Lambda)$ as an $A_\infty$-algebra. We identify the Maurer-Cartan algebra with the $0$-th cohomology of the Koszul dual…

Symplectic Geometry · Mathematics 2022-06-20 Hansol Hong

In order to derive a class of geometric-type deformations of post-Lie algebras, we first extend the geometrical notions of torsion and curvature for a general bilinear operation on a Lie algebra, then we derive compatibility conditions…

Commutative Algebra · Mathematics 2025-08-05 Jean-David Jacques

Explicit structure constants are calculated for certain Lie algebras of vectorfields on 2-dimensional compact manifolds.

Mathematical Physics · Physics 2016-03-25 Jens Hoppe , Mariusz Hynek

In this article we develop an approach to deformations of the Witt and Virasoro algebras based on $\sigma$-derivations. We show that $\sigma$-twisted Jacobi type identity holds for generators of such deformations. For the $\sigma$-twisted…

Quantum Algebra · Mathematics 2020-06-09 Jonas Hartwig , Daniel Larsson , Sergei Silvestrov

We investigate a class of Leibniz algebroids which are invariant under diffeomorphisms and symmetries involving collections of closed forms. Under appropriate assumptions we arrive at a classification which in particular gives a…

Differential Geometry · Mathematics 2012-02-21 David Baraglia

In this article we propose a new and so-called holomorphic deformation scheme for locally convex algebras and Hopf algebras. Essentially we regard converging power series expansion of a deformed product on a locally convex algebra, thus…

q-alg · Mathematics 2008-02-03 Markus J. Pflaum , Martin Schottenloher

We develop the notion of deformations using a valuation ring as ring of coefficients. This permits to consider in particular the classical Gerstenhaber deformations of associative or Lie algebras as infinitesimal deformations and to solve…

Rings and Algebras · Mathematics 2007-05-23 Michel Goze , Elisabeth Remm

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