Results 1 to 10 of about 191,927 (272)

On the Contact Geometry and the Poisson Geometry of the Ideal Gas [PDF]

open access: yesEntropy, 2018
We elaborate on existing notions of contact geometry and Poisson geometry as applied to the classical ideal gas. Specifically, we observe that it is possible to describe its dynamics using a 3-dimensional contact submanifold of the standard 5-dimensional
J. M. Isidro, P. Fernández de Córdoba
doaj   +4 more sources

Simultaneous deformations and Poisson geometry [PDF]

open access: yesCompositio Mathematica, 2014
We consider the problem of deforming simultaneously a pair of given structures. We show that such deformations are governed by an L-infinity algebra, which we construct explicitly. Our machinery is based on Th.
Bursztyn   +9 more
core   +11 more sources

Poisson-Riemannian geometry [PDF]

open access: yesJournal of Geometry and Physics, 2016
We deform classical geometry, including connections, to first order in a parameter.
Beggs, EJ, Majid, S
core   +4 more sources

Poisson Geometry in Constrained Systems [PDF]

open access: yesReviews in Mathematical Physics, 2002
Constrained Hamiltonian systems fall into the realm of presymplectic geometry. We show, however, that also Poisson geometry is of use in this context.
Bertlmann R. A.   +11 more
core   +5 more sources

Basic Notions of Poisson and Symplectic Geometry in Local Coordinates, with Applications to Hamiltonian Systems

open access: yesUniverse, 2022
This work contains a brief and elementary exposition of the foundations of Poisson and symplectic geometries, with an emphasis on applications for Hamiltonian systems with second-class constraints.
Alexei A. Deriglazov
doaj   +3 more sources

Geometry of Tangent Poisson–Lie Groups

open access: yesMathematics, 2023
Let G be a Poisson–Lie group equipped with a left invariant contravariant pseudo-Riemannian metric. There are many ways to lift the Poisson structure on G to the tangent bundle TG of G.
Ibrahim Al-Dayel   +2 more
doaj   +2 more sources

Affine Poisson and affine quasi-Poisson T-duality

open access: yesNuclear Physics B, 2019
We generalize the Poisson–Lie T-duality by making use of the structure of the affine Poisson group which is the concept introduced some time ago in Poisson geometry as a generalization of the Poisson–Lie group. We also introduce a new notion of an affine
Ctirad Klimčík
doaj   +5 more sources

Cluster algebras and Poisson geometry

open access: yesMoscow Mathematical Journal, 2003
We introduce a Poisson variety compatible with a cluster algebra structure and a compatible toric action on this variety. We study Poisson and topological properties of the union of generic orbits of this toric action.
Gekhtman, M.   +2 more
core   +4 more sources

On the variational noncommutative Poisson geometry [PDF]

open access: yesPhysics of Particles and Nuclei, 2011
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 associative algebras ...
A. V. Kiselev   +6 more
core   +4 more sources

Poisson deformations and birational geometry [PDF]

open access: yes, 2014
Let \pi: Y -> X be a crepant projective resolution of an affine symplectic variety X with a good C^*-action. We interpret the second cohomology H^2(Y, C) in two ways. First, H^2(Y, C) is the Picard group of Y tensorised with C.
Namikawa, Yoshinori
core   +4 more sources

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