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200 papers

In this paper, we investigate the abstract non-scalar Volterra difference equations. We employ the Poisson like transforms to connect the solutions of the abstract non-scalar Volterra integro-differential equations and the abstract…

General Mathematics · Mathematics 2024-04-01 Marko Kostić

We develop the notions of multiplicative Lie conformal and Poisson vertex algebras, local and non-local, and their connections to the theory of integrable differential-difference Hamiltonian equations. We establish relations of these…

Representation Theory · Mathematics 2019-05-01 Alberto De Sole , Victor G. Kac , Daniele Valeri , Minoru Wakimoto

A vector variational principle is proved.

Optimization and Control · Mathematics 2009-07-08 Ewa M. Bednarczuk , Dariusz Zagrodny

We introduce the concept of a variational tricomplex, which is applicable both to variational and non-variational gauge systems. Assigning this tricomplex with an appropriate symplectic structure and a Cauchy foliation, we establish a…

Mathematical Physics · Physics 2015-09-21 Alexey A. Sharapov

Following the guidelines of classical differential geometry the `building material' for the tensor calculus in non-commutative geometry is suggested. The algebraic account of moduli of vectors and covectors is carried out.

q-alg · Mathematics 2008-02-03 G. N. Parfionov , Yu. A. Romashev , R. R. Zapatrine

We study various properties of polarized vectorial Poisson structures subordinate to polarized k-symplectic manifolds, and also, we study the notion of polarized vectorial Poisson manifold. Some properties and examples are given.

Symplectic Geometry · Mathematics 2018-12-21 Azzouz Awane , Ismail Benali , Souhaila El Amine

We use orthogonality measures of Askey--Wilson polynomials to construct Markov processes with linear regressions and quadratic conditional variances. Askey--Wilson polynomials are orthogonal martingale polynomials for these processes.

Probability · Mathematics 2014-07-29 Włodek Bryc , Jacek Wesołowski

A method for designing variational principles for the dynamics of a possibly dissipative and non-conservatively forced chain of particles is demonstrated. Some qualitative features of the formulation are discussed.

Mathematical Physics · Physics 2024-04-05 Amit Acharya , Ambar N. Sengupta

We construct new invariants of equivariant birational isomorphisms taking values in equivariant Burnside groups.

Algebraic Geometry · Mathematics 2022-08-12 Andrew Kresch , Yuri Tschinkel

We continue the investigation of noncommutative cumulants. In this paper various characterizations of noncommutative Gaussian random variables are proved.

Combinatorics · Mathematics 2007-05-23 Franz Lehner

We construct two abelian varieties over $\mathbb{Q}$ which are not isomorphic, but have isomorphic Mordell--Weil groups over every number field, isomorphic Tate modules and equal values for several other invariants.

Number Theory · Mathematics 2025-08-04 Jamie Bell

Differential properties for orthogonal polynomials in several variables are studied. We consider multivariate orthogonal polynomials whose gradients satisfy some quasi--orthogonality conditions. We obtain several characterizations for these…

Classical Analysis and ODEs · Mathematics 2007-05-23 M. Alvarez de Morales , L. Fernández , T. E. Pérez , M. A. Piñar

On base of differential biquaternions algebra and generalized functions theory the biquaternionic wave equation is considered under vector representation of its structural coefficient. Its generalized solutions are constructed, which…

Mathematical Physics · Physics 2014-06-23 L. A Alexeyeva

We consider discrete nonparametric priors which induce Gibbs-type exchangeable random partitions and investigate their posterior behavior in detail. In particular, we deduce conditional distributions and the corresponding Bayesian…

Probability · Mathematics 2008-08-22 Antonio Lijoi , Igor Prünster , Stephen G. Walker

In this paper, we study obstructed and unobstructed (holomorphic) Poisson deformations with classical examples in deformation theory.

Algebraic Geometry · Mathematics 2016-04-19 Chunghoon Kim

We introduce a canonical outer vector field on a Poisson manifold, also due independently to A. Weinstein. We view it as a global section of the sheaf of Poisson vector fields modulo the subsheaf of hamiltonian vector fields. We study this…

Differential Geometry · Mathematics 2007-05-23 Jean-Luc Brylinski , Gregg Zuckerman

We establish a formal variational calculus of supervariables, which is a combination of the bosonic theory of Gel'fand-Dikii and the fermionic theory in our earlier work. Certain interesting new algebraic structures are found in connection…

Quantum Algebra · Mathematics 2007-05-23 Xiaoping Xu

I show how variational Bayes can be used as a microfoundation for a popular model of non-Bayesian updating.

Theoretical Economics · Economics 2024-05-22 Tomasz Strzalecki

We provide some equations for the Variance Gamma process due to the fact that we do not consider only the definition as a time-changed Brownian motion. This brings us to a new non-local equation, even true in the drifted case, involving…

Probability · Mathematics 2022-10-19 Fausto Colantoni

We construct nontrivial roots of Dehn twists about nonseparating curves.

Geometric Topology · Mathematics 2014-11-11 Dan Margalit , Saul Schleimer