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The notion of a holomorphically symplectic manifold can be generalized to the singular one. This paper studies the birational contraction maps between symplectic varieties, and then describes the deformation of a symplectic variety which…

Algebraic Geometry · Mathematics 2007-05-23 Yoshinori Namikawa

A coordinate-free definition for Wick-type symbols is given for symplectic manifolds by means of the Fedosov procedure. The main ingredient of this approach is a bilinear symmetric form defined on the complexified tangent bundle of the…

High Energy Physics - Theory · Physics 2009-11-07 V. A. Dolgushev , S. L. Lyakhovich , A. A. Sharapov

Fedosov has described a geometro-algebraic method to construct in a canonical way a deformation of the Poisson algebra associated with a finite-dimensional symplectic manifold ("phase space"). His algorithm gives a non-commutative, but…

Mathematical Physics · Physics 2016-04-01 Giovanni Collini

We extend the author's and CPTVV's correspondence between shifted symplectic and Poisson structures to establish a correspondence between exact shifted symplectic structures and non-degenerate shifted Poisson structures with formal…

Symplectic Geometry · Mathematics 2026-01-19 J. P. Pridham

We review our construction of star-products on Poisson manifolds and discuss some examples. In particular, we work out the relation with Fedosov's original construction in the symplectic case.

Quantum Algebra · Mathematics 2020-05-29 Alberto S. Cattaneo , Giovanni Felder , Lorenzo Tomassini

The study of recently introduced Fedosov supermanifolds is continued. Using normal coordinates, properties of even and odd symplectic supermanifolds endowed with a symmetric connection respecting given sympletic structure are studied.

High Energy Physics - Theory · Physics 2009-11-10 Bodo Geyer , Peter Lavrov

Some introductory concepts and basic definitions of the Lie superalgebras and their quantum deformations are exposed. Especially the induced representation methods in both cases are described. Based on the Kac representation theory we have…

Quantum Algebra · Mathematics 2007-05-23 Nguyen Anh Ky

We review recent works concerning deformation quantization of abelian supergroups. Indeed, we expose the construction of an induced representation of the Heisenberg supergroup and an associated pseudodifferential calculus by using…

Quantum Algebra · Mathematics 2013-07-10 Axel de Goursac

To each natural deformation quantization on a Poisson manifold M we associate a Poisson morphism from the formal neighborhood of the zero section of the cotangent bundle to M to the formal neighborhood of the diagonal of the product M x M~,…

Quantum Algebra · Mathematics 2009-11-10 Alexander V. Karabegov

Let $\Lambda$ be a smooth Lagrangian submanifold of a complex symplectic manifold $X$. We construct twisted simple holonomic modules along $\Lambda$ in the stack of deformation-quantization modules on $X$.

Algebraic Geometry · Mathematics 2015-05-12 Andrea D'Agnolo , Pierre Schapira

We present explicit universal strict deformation quantization formulae for actions of Iwasawa subgroups AN of SU(1,n). This answers a question raised by Rieffel.

Quantum Algebra · Mathematics 2007-05-23 Pierre Bieliavsky , Marc Massar

We use the method of homological quantum reduction to construct a deformation quantization on singular symplectic quotients in the situation, where the coefficients of the moment map define a complete intersection. Several examples are…

Mathematical Physics · Physics 2007-05-23 Martin Bordemann , Hans-Christian Herbig , Markus J. Pflaum

We introduce a new kind of groupoid--a pseudo \'etale groupoid, which provides many interesting examples of noncommutative Poisson algebras as defined by Block, Getzler, and Xu. Following the idea that symplectic and Poisson geometries are…

Quantum Algebra · Mathematics 2007-05-23 Xiang Tang

Geometric quantization transforms a symplectic manifold with Lie group action to a unitary representation. In this article, we extend geometric quantization to the super setting. We consider real forms of contragredient Lie supergroups with…

Representation Theory · Mathematics 2024-05-28 Meng-Kiat Chuah , Rita Fioresi

We give a short review of the algebraic procedure known as deformation quantisation, which replaces a commutative algebra with a non-commutative algebra. We use this framework to examine how the objects known as wavefunctions, as known in…

Mathematical Physics · Physics 2022-08-17 Michael Swaddle

In this paper, we construct and investigate two supersymmetric versions of the Fokas-Gel'fand formula for the immersion of 2D surfaces associated with a supersymmetric integrable system. The first version involves an infinitesimal…

Mathematical Physics · Physics 2016-10-05 S. Bertrand , A. M. Grundland

The characteristic class of a star product on a symplectic manifold appears as the class of a deformation of a given symplectic connection, as described by Fedosov. In contrast, one usually thinks of the characteristic class of a star…

Quantum Algebra · Mathematics 2007-05-23 P. Bieliavsky , P. Bonneau

A simple iterative procedure is suggested for the deformation quantization of (irregular) Poisson brackets associated to the classical Yang-Baxter equation. The construction is shown to admit a pure algebraic reformulation giving the…

High Energy Physics - Theory · Physics 2009-11-07 V. A. Dolgushev , A. P. Isaev , S. L. Lyakhovich , A. A. Sharapov

In this paper we prove the unobstructedness of the deformation of integral coisotropic submanifolds in symplectic manifolds, which can be viewed as a natural generalization of results of Weinstein for Lagrangian submanifolds.

Symplectic Geometry · Mathematics 2007-05-23 Wei-Dong Ruan

We study the notion of symplectic scalar curvature on the supermanifold over an ordinary Fedosov manifold whose structural sheaf is that of differential forms. In this purely geometric context, we introduce two families of odd super-Fedosov…

Mathematical Physics · Physics 2024-09-04 R Hernández-Amador , JA Vallejo , Yu Vorobiev