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Motivated by the phenomenon that compatible Poisson structures on a cluster algebra play a key role on its quantization (that is, quantum cluster algebra), we introduce the second quantization of a quantum cluster algebra, which means the…

Representation Theory · Mathematics 2020-08-12 Fang Li , Jie Pan

We describe two types of Poisson pencils generated by a linear bracket and a quadratic one arising from a classical R-matrix. A quantization scheme is discussed for each. The quantum algebras are represented as the enveloping algebras of…

q-alg · Mathematics 2016-09-08 D. Gurevich , V. Rubtsov

We give a simple geometric explanation for the similarity transformation mapping one-dimensional conformal mechanics to free-particle system. Namely, we show that this transformation corresponds to the inversion of the Klein model of…

High Energy Physics - Theory · Physics 2009-02-16 Tigran Hakobyan , Armen Nersessian

Quantum Groups can be constructed by applying the quantization by deformation procedure to Lie groups endowed with a suitable Poisson bracket. Here we try to develop an understanding of these structures by investigating dynamical systems…

High Energy Physics - Theory · Physics 2009-10-22 F. Lizzi , G. Marmo , G. Sparano , P. Vitale

We study the shifted Poisson structure on the cochain complex C*(g) of a graded Lie algebra arising from shifted Lie bialgebra structure on g. We apply this to construct a 1-shifted Poisson structures on an infinitesimal quotient of the…

Algebraic Geometry · Mathematics 2015-11-04 Slava Pimenov

In this paper we prove that any Poisson structure on a sheaf of Lie algebroids admits a weak deformation quantization, and give a sufficient condition for such a Poisson structure to admit an actual deformation quantization. We also answer…

Quantum Algebra · Mathematics 2012-01-24 Damien Calaque , Gilles Halbout

We write down the Poisson structure for a relativistic particle where the Lorentz group does not act canonically, but instead as a Poisson-Lie group. In so doing we obtain the classical limit of a particle moving on a noncommutative space…

q-alg · Mathematics 2009-10-28 A. Simoni , A. Stern , I. Yakushin

Left-invariant Lorentzian structures on the 2D solvable non-Abelian Lie group are studied. Sectional curvature, attainable sets, Lorentzian length maximizers, distance, spheres, and infinitesimal isometries are described.

Optimization and Control · Mathematics 2023-07-18 Yu. L. Sachkov

A hierarchy of commutative Poisson subalgebras for the Sklyanin bracket is proposed. Each of the subalgebras provides a complete set of integrals in involution with respect to the Sklyanin bracket. Using different representations of the…

Exactly Solvable and Integrable Systems · Physics 2007-05-23 V. V. Sokolov , A. V. Tsiganov

As a generalization of the linear Poisson bracket on the dual space of a Lie algebra, we introduce certain non-linear Poisson brackets which are ``cocycle perturbations'' of the linear Poisson bracket. We show that these special Poisson…

Functional Analysis · Mathematics 2007-05-23 Byung-Jay Kahng

We describe the generalized Kuranishi spaces of solvmanifolds with left-invariant complex structures. By using such description, we study the stability of left-invariantness of deformed generalized complex structures and smoothness of…

Differential Geometry · Mathematics 2016-10-04 Hisashi Kasuya

The moduli space of $G$-bundles on an elliptic curve with additional flag structure admits a Poisson structure. The bivector can be defined using double loop group, loop group and sheaf cohomology constructions. We investigate the links…

Algebraic Geometry · Mathematics 2007-11-17 David Balduzzi

We develop an Hamiltonian representation of the sl(2,C) algebra on a phase space consisting of N copies of twistors, or bi-spinors. We identify a complete set of global invariants, and show that they generate a closed algebra including…

General Relativity and Quantum Cosmology · Physics 2015-05-28 Maité Dupuis , Laurent Freidel , Etera R. Livine , Simone Speziale

In this paper, we show that for any integer $k \in \mathbb{N}$ there exists a Sobolev sheaf (in the sense of Lebeau) on any definable site of $\mathbb{R}^2$ that agrees with Sobolev spaces on cuspidal domains. We also provide a complete…

Metric Geometry · Mathematics 2025-11-25 M'hammed Oudrane

Recently Kontsevich solved the classification problem for deformation quantizations of all Poisson structures on a manifold. In this paper we study those Poisson structures for which the explicit methods of Fedosov can be applied, namely…

Quantum Algebra · Mathematics 2007-05-23 Ryszard Nest , Boris Tsygan

We give an $L_\infty$-interpretation of the classification, obtained in [AP2], of the formal deformations of a family of exact Poisson structures in dimension three. We indeed obtain again the explicit formulas for all the formal…

Quantum Algebra · Mathematics 2010-05-18 Anne Pichereau

We introduce the notion of skew-holomorphic Lie algebroid on a complex manifold, and explore some cohomologies theories that one can associate to it. Examples are given in terms of holomorphic Poisson structures of various sorts.

Complex Variables · Mathematics 2015-05-18 Ugo Bruzzo , Vladimir Rubtsov

A list of generic $U_q(sl_2)$-module algebra structures on the Laurent polynomial algebra over the quantum plane with uncountably many isomorphism classes is produced. Also, a complete list of such structures is presented in which the…

Quantum Algebra · Mathematics 2014-10-30 Sergey D. Sinel'shchikov

We compute the Poisson cohomology of the one-parameter family of SU(2)-covariant Poisson structures on the homogeneous space S^{2}=CP^{1}=SU(2)/U(1), where SU(2) is endowed with its standard Poisson--Lie group structure,thus extending the…

Quantum Algebra · Mathematics 2007-05-23 Dmitry Roytenberg

All continuous SL(n)-covariant $L_p$-Minkowski valuations defined on convex bodies are completely classified. The $L_p$-moment body operators turn out to be the nontrivial prototypes of such maps.

Metric Geometry · Mathematics 2015-07-02 Lukas Parapatits