Results 271 to 280 of about 7,283,719 (303)

A structural method for hamiltonian graphs

Australas. J Comb., 1995
A characterization of hamiltonian graphs in terms of a partition of the vertices of the graph into a complete subgraph and a set of additional vertex disjoint subgraphs which have special properties relative to their neighborhoods in the complete subgraph is given.
G. Li, B. Wei, T. Gao
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On the structure of Hamiltonian operators in the field theory

Journal of Geometry and Physics, 1986
In finite dimensional mechanics Hamiltonian operators are introduced in the following way: Let \(F=C^{\infty}(M)\) denote the ring of \({\mathbb{R}}\) valued \(C^{\infty}\)-functions on a manifold M and let D(M) denote the F-module of \(C^{\infty}\)-vector fields on M.
Astashov, A. M., Vinogradov, A. M.
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A note on Hamiltonian structure

Mathematical Proceedings of the Cambridge Philosophical Society, 1987
The aim of this paper is to give some results on the determination of Hamiltonian structure for a set of evolutionary equations, either differential or non-local. There are several reasons why the recognition of Hamiltonian structure is important. Firstly, as in the case of Lagrangian systems, conservation laws are often connected with symmetry groups ...
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Hamiltonian structure of discrete soliton systems

Journal of Physics A: Mathematical and General, 2002
Summary: We describe an approach for investigating the Hamiltonian structures of the lattice isospectral evolution equations associated with a general discrete spectral problem. By using the so-called implicit representations of the isospectral flows, we demonstrate the existence of the recursion operator \(L\), which is a strong and hereditary ...
Zhang, Dajun, Chen, Dengyuan
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Lattice equations, hierarchies and Hamiltonian structures

Physica A: Statistical Mechanics and its Applications, 1987
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Wiersma, G. L., Capel, H. W.
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Linearized structures of lagrangian, hamiltonian, and quasi-hamiltonian systems

Physics Letters A, 1986
Abstract Linearized structures are found for general lagrangian, hamiltonian, and quasi-hamiltonian systems, as well as for Lax and zero-curvature representations.
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Complexifications and real forms of Hamiltonian structures

The European Physical Journal B - Condensed Matter, 2002
We consider generalizations of the standard Hamiltonian dynamics to complex dynamical variables and introduce the notions of real Hamiltonian form in analogy with the notion of real forms for a simple Lie algebra. Thus to each real Hamiltonian system we are able to relate several nonequivalent ones.
GERDJIKOV VS, KULDJIEV A, MARMO G, VILASI, Gaetano   +3 more
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On the Structure of Non-Hamiltonian Graphs I

Combinatorics, Probability and Computing, 1992
The structure of non-Hamiltonian graphs is studied in terms of neighbourhood-unions. Numerous results, such as (A), (B) and (C) below, are obtained.
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Polynomial Eigenvalue Problems with Hamiltonian Structure

2002
We discuss the numerical solution of eigenvalue problems for matrix polynomials, where the coefficient matrices are alternating symmetric and skew symmetric or Hamiltonian and skew Hamiltonian. We discuss several applications that lead to such structures.
Mehrmann, Volker, Watkins, David
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DEPENDENCE OF HAMILTONIAN CHAOS ON PERTURBATION STRUCTURE

International Journal of Bifurcation and Chaos, 1993
In this paper, we considered a Hamiltonian dynamical system consisting of a steady wave and a perturbation wave and studied the dependence of spatial patterns of chaos on the perturbation structure (i.e., the wave numbers of the perturbation wave). The system came from the passive wave mixing and transport problem.
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