نتایج جستجو برای: discrete hamiltonian system

تعداد نتایج: 2368794  

2010
Melvin Leok Tomoki Ohsawa

We present discrete analogues of Dirac structures and the Tulczyjew’s triple by considering the geometry of symplectic maps and their associated generating functions. We demonstrate that this framework provides a means of deriving discrete analogues of implicit Lagrangian and Hamiltonian systems. In particular, this yields implicit nonholonomic Lagrangian and Hamiltonian integrators. We also in...

1998
M. BOHNER

-This paper introduces general discrete linear Harniltonian eigenvalue problems and characterizes the eigenvalues. Assumptions are given, among them the new notion of strict controllability of a discrete system, that imply isolatedness and lower boundedness of the eigenvalues. Due to the quite general assumptions, discrete Sturrn-Liouville eigenvalue problems of higher order are included in the...

Journal: :journal of sciences, islamic republic of iran 2011
n. elyasi

in this paper mathematical structure of time-dependent lagrangian systems and their symmetries are extended and the explicit relation between constants of motion and infinitesimal symmetries of time-dependent lagrangian systems are considered. starting point is time-independent lagrangian systems ,then we extend mathematical concepts of these systems such as equivalent lagrangian systems to the...

Journal: :Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics 1994
Flach Kladko Willis

We analyze the origin and features of localized excitations in a discrete two-dimensional Hamiltonian lattice. The lattice obeys discrete translational symmetry, and the localized excitations exist because of the presence of nonlinearities. We connect the presence of these excitations with the existence of local integrability of the original N degree of freedom system. On the basis of this expl...

2014
Paul Bressloff Olivier Faugeras

We develop the connection between large deviation theory and more applied approaches to stochastic hybrid systems by highlighting a common underlying Hamiltonian structure. A stochastic hybrid system involves the coupling between a piecewise deterministic dynamical system in Rd and a time-homogeneous Markov chain on some discrete space Γ. We assume that the Markov chain on Γ is ergodic, and tha...

Journal: :Journal of Physics A: Mathematical and General 2004

Journal: :International Journal of Bifurcation and Chaos 2011

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