Results 31 to 40 of about 3,291 (79)

Differential Geometry of the Vortex Filament Equation

open access: yes, 1996
Differential calculus on the space of asymptotically linear curves is developed. The calculus is applied to the vortex filament equation in its Hamiltonian description.
Da Rois   +18 more
core   +1 more source

Free Boundary Poisson Bracket Algebra in Ashtekar's Formalism [PDF]

open access: yes, 1997
We consider the algebra of spatial diffeomorphisms and gauge transformations in the canonical formalism of General Relativity in the Ashtekar and ADM variables.
A. Ashtekar   +21 more
core   +3 more sources

Systems of conservation laws with third-order Hamiltonian structures [PDF]

open access: yes, 2017
We investigate $n$-component systems of conservation laws that possess third-order Hamiltonian structures of differential-geometric type. The classification of such systems is reduced to the projective classification of linear congruences of lines in ...
Ferapontov, E. V.   +2 more
core   +2 more sources

Algebraic properties of Gardner's deformations for integrable systems

open access: yes, 2007
An algebraic definition of Gardner's deformations for completely integrable bi-Hamiltonian evolutionary systems is formulated. The proposed approach extends the class of deformable equations and yields new integrable evolutionary and hyperbolic Liouville-
A. B. Borisov   +20 more
core   +4 more sources

Switching chiral solitons for algebraic operation of topological quaternary digits [PDF]

open access: yesNature Physics, 2017
A demonstration of switching between solitons of different chirality in a one-dimensional electronic system shows how topological excitations can be used to realize non-trivial algebraic operations.
Tae-Hwan Kim, Sangmo Cheon, H. Yeom
semanticscholar   +1 more source

On the bi-Hamiltonian Geometry of WDVV Equations

open access: yes, 2015
We consider the WDVV associativity equations in the four dimensional case. These nonlinear equations of third order can be written as a pair of six component commuting two-dimensional non-diagonalizable hydrodynamic type systems.
Pavlov, M. V., Vitolo, R. F.
core   +1 more source

On the classification of warped product Einstein metrics [PDF]

open access: yes, 2011
In this paper we take the perspective introduced by Case-Shu-Wei of studying warped product Einstein metrics through the equation for the Ricci curvature of the base space.
He, Chenxu   +2 more
core   +2 more sources

Twist deformations of Newtonian Schwarzschild-(Anti-)de Sitter classical system

open access: yes, 2019
In this article we provide three new twist-deformed Newtonian Schwarzschild-(Anti-)de Sitter models. They are defined on the Lie-algebraically as well as on the canonically noncommutative space-times respectively.
Daszkiewicz, Marcin
core   +1 more source

Algebraic Schouten Solitons Associated to Perturbed Canonical Connection and Perturbed Kobayashi-Nomizu Connection on Three-Dimensional Lorentzian Lie Groups

open access: yes
In this paper, we study algebraic Schouten solitons concerning the perturbed canonical connection and the perturbed Kobayashi Nomizu connection on three-dimensional Lorentzian Lie groups and give the complete classification of the algebraic Schouten solitons with product structure on three-dimensional Lorentzian Lie groups.
Jinguo Jiang, Yanni Yang
openaire   +1 more source

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