English
Related papers

Related papers: On variational bivectors

200 papers

We build examples of Poisson structure whose Poisson diffeomorphism group is not locally path-connected.

Symplectic Geometry · Mathematics 2020-01-06 Ioan Marcut

In this paper we present multivariate space-time fractional Poisson processes by considering common random time-changes of a (finite-dimensional) vector of independent classical (non-fractional) Poisson processes. In some cases we also…

Probability · Mathematics 2015-07-22 Luisa Beghin , Claudio Macci

We outline the notions and concepts of the calculus of variational multivectors within the Poisson formalism over the spaces of infinite jets of mappings from commutative (non)graded smooth manifolds to the factors of noncommutative…

Mathematical Physics · Physics 2012-09-11 Arthemy V. Kiselev

There are mixing Poisson suspensions that are not isomorphic to their inverses.

Dynamical Systems · Mathematics 2025-12-16 Valery V. Ryzhikov

We construct examples of non-bi-orderable one-relator groups without generalized torsion. This answers a question asked in [2].

Group Theory · Mathematics 2026-04-16 Azer Akhmedov , James Thorne

A vertical exterior derivative is constructed that is needed for a graded Poisson structure on multisymplectic manifolds over nontrivial vector bundles. In addition, the properties of the Poisson bracket are proved and first examples are…

Mathematical Physics · Physics 2009-10-31 Cornelius Paufler

We introduce the concept of braided noncommutative Poisson bialgebras. The theory of cocycle bicrossproducts for noncommutative Poisson bialgebras is developed. As an application, we solve the extending problem by using some non-abelian…

Rings and Algebras · Mathematics 2023-05-17 Tao Zhang , Fang Yang

We introduce the notion of a combinatorial inverse system in non-commutative variables. We present two important examples, some conjectures and results. These conjectures and results were suggested and supported by computer investigations.

Rings and Algebras · Mathematics 2010-10-05 J. -C. Aval , N. Bergeron , H. Li

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

In this paper, we study deformations of nonsingular Poisson varieties, deformations of Poisson invertible sheaves and simultaneous deformations of nonsingular Poisson varieties and Poisson invertible sheaves, which extend flat deformation…

Algebraic Geometry · Mathematics 2020-10-21 Chunghoon Kim

In this paper we introduce and discuss some classes of orthogonal polynomials in several non-commuting variables. The emphasis is on a non-commutative version of the orthogonal polynomials on the real line. We introduce recurrence equations…

Functional Analysis · Mathematics 2007-05-23 T. Constantinescu

We develop Cresson's nondifferentiable calculus of variations on the space of H\"{o}lder functions. Several quantum variational problems are considered: with and without constraints, with one and more than one independent variable, of first…

Optimization and Control · Mathematics 2011-11-29 Ricardo Almeida , Delfim F. M. Torres

This paper will be devoted to study weighted (deformed) free Poisson random variables from the viewpoint of orthogonal polynomials and statistics of non-crossing partitions. A family of weighted (deformed) free Poisson random variables will…

Probability · Mathematics 2025-09-03 Nobuhiro Asai , Hiroaki Yoshida

In this paper we generalize constructions of non-commutative integrable systems to the context of weakly Hamiltonian actions on Poisson manifolds. In particular we prove that abelian weakly Hamiltonian actions on symplectic manifolds split…

Symplectic Geometry · Mathematics 2018-02-13 David Martínez Torres , Eva Miranda

Fast variational approximate algorithms are developed for Bayesian semiparametric regression when the response variable is a count, i.e. a non-negative integer. We treat both the Poisson and Negative Binomial families as models for the…

Methodology · Statistics 2013-09-18 Jan Luts , Matt P. Wand

This semi-expository paper surveys results concerning three classes of orthogonal polynomials: in one non-hermitian variable, in several isometric non-commuting variables, and in several hermitian non-commuting variables. The emphasis is on…

Functional Analysis · Mathematics 2007-05-23 T. Banks , T. Constantinescu , J. L. Johnson

Some derivation-based differential calculi which have been used to construct models of noncommutative gauge theories are presented and commented. Some comparisons between them are made.

Mathematical Physics · Physics 2010-01-18 T. Masson

A note on "Bayesian nonparametric estimators derived from conditional Gibbs structures" by Antonio Lijoi, Igor Pr\"{u}nster, Stephen G. Walker [arXiv:0808.2863].

Probability · Mathematics 2014-01-17 Antonio Lijoi , Igor Prünster , Stephen G. Walker

We discuss the nonholonomic Chaplygin and the Borisov-Mamaev-Fedorov systems, for which symplectic forms are different deformations of the square root from the corresponding invariant volume form. In both cases second Poisson bivectors are…

Exactly Solvable and Integrable Systems · Physics 2015-05-28 A. V. Tsiganov

We construct a collection of numerical invariants for approximately transitive (AT) actions (of $\Z$). We use them (sometimes supplemented by other invariants to show that members of various one-parameter families of AT actions are mutually…

Dynamical Systems · Mathematics 2021-08-13 David Handelman
‹ Prev 1 2 3 10 Next ›