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The great deal in noncommutative (NC) field theories started when it was noted that NC spaces naturally arise in string theory with a constant background magnetic field in the presence of $D$-branes. Besides their origin in string theories…

High Energy Physics - Theory · Physics 2010-11-05 Everton M. C. Abreu , Clifford Neves , Wilson Oliveira

The purpose of this mostly expository paper is to discuss a connection between Nielsen fixed point theory and symplectic Floer homology theory for symplectomorphisms of surface and a calculation of Seidel's symplectic Floer homology for…

Symplectic Geometry · Mathematics 2008-07-02 Alexander Fel'shtyn

We combine the coordinate method and Erlangen program in the framework of noncommutative geometry through an investigation of symmetries of noncommutative coordinate algebras. As the model we use the coherent states construction and the…

Mathematical Physics · Physics 2009-09-25 Vladimir V. Kisil

The study of algebraic properties of groups of transformations of a manifold gives rise to an interplay between different areas of mathemathics such as topology, geometry, and dynamical systems. Especially, in this paper, we point out some…

Symplectic Geometry · Mathematics 2016-01-05 Stéphane Tchuiaga

Within the context of the twisted Poincar\'e algebra, there exists no noncommutative analogue of the Minkowski space interpreted as the homogeneous space of the Poincar\'e group quotiented by the Lorentz group. The usual definition of…

High Energy Physics - Theory · Physics 2008-11-26 M. Chaichian , P. P. Kulish , A. Tureanu , R. B. Zhang , Xiao Zhang

We extend the three-dimensional noncommutative relations of the positions and momenta operators to those in the four dimension. Using the Bopp shift technique, we give the Heisenberg representation of these noncommutative algebras and endow…

High Energy Physics - Theory · Physics 2024-03-15 Shi-Dong Liang

This paper is the second part of a series that develops the mathematical framework necessary for studying field theories on ``T-Minkowski'' noncommutative spacetimes. These spacetimes constitute a class of noncommutative geometries,…

High Energy Physics - Theory · Physics 2025-04-18 Flavio Mercati

Starting with a Hilbert space endowed with a representation of a unitary Lie algebra and an action of a generalized Dirac operator, we develop a mathematical concept towards gauge field theories. This concept shares common features with the…

High Energy Physics - Theory · Physics 2008-02-03 Raimar Wulkenhaar

The purpose of this note is to make some connection between the sub-Riemannian geometry on Carnot-Caratheodory groups and symplectic geometry. We shall concentrate here on the Heisenberg group, although it is transparent that almost…

Symplectic Geometry · Mathematics 2007-05-23 Marius Buliga

We discuss how the symmetries of $\kappa$-Minkowski non-commutative spacetime can be described by the $\kappa$-Poincar\'e Hopf algebra. In particular, we focus on a generalization of the Noether analysis in the $\kappa$-deformed framework…

High Energy Physics - Theory · Physics 2008-11-26 Michele Arzano

I present in this paper some tools in Symplectic and Poisson Geometry in view of their applications in Geometric mechanics and Mathematical Physics. After a short discussion of the Lagrangian and Hamiltonian formalisms, including the use of…

Differential Geometry · Mathematics 2017-02-21 Charles-Michel Marle

In this article, we analyze the Pontryagin model adopting different geometric-covariant approaches. In particular, we focus on the manner in which boundary conditions must be imposed on the background manifold in order to reproduce an…

General Relativity and Quantum Cosmology · Physics 2025-02-21 Jasel Berra-Montiel , Iñaki de Santos , Alberto Molgado

Interesting non-linear functions on the phase spaces of classical field theories can never be quantized immediately because the basic fields of the theory become operator valued distributions. Therefore, one is usually forced to find a…

High Energy Physics - Theory · Physics 2009-10-31 T. Thiemann

It is well known that the Lagrangian and the Hamiltonian formalisms can be combined and lead to "covariant symplectic" methods. For that purpose a "pre-symplectic form" has been constructed from the Lagrangian using the so-called Noether…

High Energy Physics - Theory · Physics 2007-05-23 Bernard Julia , Sebastian Silva

We investigate the reduction process of a k-symplectic field theory whose Lagrangian is invariant under a symmetry group. We give explicit coordinate expressions of the resulting reduced partial differential equations, the so-called…

Mathematical Physics · Physics 2015-11-26 L. Bua , T. Mestdag , M. Salgado

We consider a description of membranes by (2,1)-dimensional field theory, or alternatively a description of irrotational, isentropic fluid motion by a field theory in any dimension. We show that these Galileo-invariant systems, as well as…

High Energy Physics - Theory · Physics 2009-10-31 D. Bazeia , R. Jackiw

We consider set of functions on Poisson manifold related by continues one-parameter group of transformations. Class of vector fields that produce involutive families of functions is investigated and relationship between these vector fields…

Mathematical Physics · Physics 2009-11-11 George Chavchanidze

The polysymplectic $(n+1)$-form is introduced as an analogue of the symplectic form for the De Donder-Weyl polymomentum Hamiltonian formulation of field theory. The corresponding Poisson brackets on differential forms are constructed. The…

High Energy Physics - Theory · Physics 2008-02-03 I. V. Kanatchikov

This book is devoted to review two of the most relevant approaches to the study of classical field theories of first order, say k-symplectic and k-cosymplectic. In the last part, we relate the k-symplectic and k-cosymplectic manifolds with…

Mathematical Physics · Physics 2014-09-22 M. de León , M. Salgado , S. Vilariño

Based on the Euler-Lagrange cohomology groups $H_{EL}^{(2k-1)}({\cal M}^{2n}) (1 \leqslant k\leqslant n)$ on symplectic manifold $({\cal M}^{2n}, \omega)$, their properties and a kind of classification of vector fields on the manifold, we…

Mathematical Physics · Physics 2007-05-23 Han-Ying Guo , Jianzhong Pan , Bin Zhou