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In this short note, we introduce a generalization of the canonical base property, called transfer of internality on quotients. A structural study of groups definable in theories with this property yields as a consequence infinitely many new…

Logic · Mathematics 2021-06-25 Michael Loesch

In this paper we study a quadratic Poisson algebra structure on the space of bilinear forms on $C^{N}$ with the property that for any $n,m\in N$ such that $n m =N$, the restriction of the Poisson algebra to the space of bilinear forms with…

Mathematical Physics · Physics 2011-11-21 Leonid Chekhov , Marta Mazzocco

Let $\mathbb R^{m|n}$ be the usual super space. It is known that the algebraic functions on $\mathbb R^{m|n}$ is a Koszul algebra, whose Koszul dual algebra, however, is not the set of functions on $\mathbb R^{n|m}$, due to the…

Rings and Algebras · Mathematics 2025-12-24 Ruobing Chen , Sirui Yu

The purpose of this paper is to give a semi-local study along generic closed curves of zeros: we formally classify Poisson structures defined in a neighborhood of Gamma:=S^1x{0} in S^1xR^n, that vanish on Gamma, and whose linear…

Symplectic Geometry · Mathematics 2007-05-23 O. Brahic , J. P. Dufour

Let $A$ be the path algebra of a finite acyclic quiver $Q$ over a finite field. We realize the quantum cluster algebra with principal coefficients associated to $Q$ as a sub-quotient of a certain Hall algebra involving the category of…

Representation Theory · Mathematics 2019-11-25 Ming Ding , Fan Xu , Haicheng Zhang

We construct a hierarchy of integrable systems whose Poisson structure corresponds to the BMS$_{3}$ algebra, and then discuss its description in terms of the Riemannian geometry of locally flat spacetimes in three dimensions. The analysis…

High Energy Physics - Theory · Physics 2018-03-14 Oscar Fuentealba , Javier Matulich , Alfredo Pérez , Miguel Pino , Pablo Rodríguez , David Tempo , Ricardo Troncoso

First, we review the notion of a Poisson structure on a noncommutative algebra due to Block-Getzler and Xu and introduce a notion of a Hamiltonian vector field on a noncommutative Poisson algebra. Then we describe a Poisson structure on a…

Differential Geometry · Mathematics 2009-12-11 Yuri A. Kordyukov

Plasmons are usually described in terms of macroscopic quantities such as electric fields and currents. However as fundamental excitations of metals they are also quantum objects with internal structure. We demonstrate that this can induce…

Mesoscale and Nanoscale Physics · Physics 2021-11-17 Jinlyu Cao , H. A. Fertig , Luis Brey

We introduce a Lie bialgebra structure on the central extension of the Lie algebra of differential operators on the line and the circle (with scalar or matrix coefficients). This defines a Poisson--Lie structure on the dual group of…

High Energy Physics - Theory · Physics 2009-10-22 Boris Khesin , Ilya Zakharevich

We study natural cluster structures in the rings of regular functions on simple complex Lie groups and Poisson-Lie structures compatible with these cluster structures. According to our main conjecture, each class in the Belavin-Drinfeld…

Quantum Algebra · Mathematics 2016-05-19 Michael Gekhtman , Michael Shapiro , Alek Vainshtein

A holomorphic toric Poisson manifold is a nonsingular toric variety equipped with a holomorphic Poisson structure, which is invariant under the torus action. In this paper, we computed the Poisson cohomology groups for all holomorphic toric…

Mathematical Physics · Physics 2019-03-14 Wei Hong

We study the integrability of Poisson and Dirac structures that arise from quotient constructions. From our results we deduce several classical results as well as new applications. We also give explicit constructions of Lie groupoids…

Differential Geometry · Mathematics 2021-03-24 Daniel Álvarez

New generalized Poisson structures are introduced by using suitable skew-symmetric contravariant tensors of even order. The corresponding `Jacobi identities' are provided by conditions on these tensors, which may be understood as cocycle…

q-alg · Mathematics 2009-10-30 J. A. de Azcarraga , A. M. Perelomov , J. C. Perez Bueno

In Kapranov, M. {\it Noncommutative geometry based on commutator expansions,} J. reine angew. Math {\bf 505} (1998) 73-118, a theory of noncommutative algebraic varieties was proposed. Here we prove a structure theorem for the…

Rings and Algebras · Mathematics 2011-08-03 Guillermo Cortiñas

We construct a cluster algebra structure within the quantum cohomology ring of a quiver variety associated with an $A$-type quiver. Specifically, let $Fl:=Fl(N_1,\ldots,N_{n+1})$ denote a partial flag variety of length $n$, and…

Algebraic Geometry · Mathematics 2025-06-04 Weiqiang He , Yingchun Zhang

Within the unified framework of exploiting the relative entropy as a distance measure of quantum correlations, we make explicit the hierarchical structure of quantum coherence, quantum discord and quantum entanglement in multipartite…

Quantum Physics · Physics 2015-08-19 Yao Yao , Xing Xiao , Li Ge , C. P. Sun

We show that the quantum coordinate ring of the unipotent subgroup N(w) of a symmetric Kac-Moody group G associated with a Weyl group element w has the structure of a quantum cluster algebra. This quantum cluster structure arises naturally…

Quantum Algebra · Mathematics 2013-04-29 C. Geiss , B. Leclerc , J. Schröer

For a complex or real algebraic group G, with g:=Lie(G), quantizations of global type are suitable Hopf algebras F_q[G] or U_q(g) over C[q,q^{-1}]. Any such quantization yields a structure of Poisson group on G, and one of Lie bialgebra on…

Quantum Algebra · Mathematics 2014-03-10 Nicola Ciccoli , Fabio Gavarini

It is shown that the operator space generated by peripheral eigenvectors of a unital completely positive map on a von Neumann algebra has a $C^*$-algebra structure. This extends the notion of non-commutative Poisson boundary by including…

Operator Algebras · Mathematics 2024-05-24 B. V. Rajarama Bhat , Samir Kar , Bharat Talwar

We develop (quantum) cluster algebra structures over arbitrary commutative unital rings $\Bbbk$ and prove that the (quantized) coordinate rings of connected simply-connected complex simple algebraic groups $G$ over $\Bbbk$ admit such…

Quantum Algebra · Mathematics 2026-01-30 Hironori Oya , Fan Qin , Milen Yakimov
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