Results 1 to 10 of about 38,674 (306)

Thermal buckling and postbuckling of functionally graded multilayer GPL-reinforced composite beams on nonlinear elastic foundations

open access: yesHeliyon, 2023
Under the influence of axial forces and uniform temperature variations, the thermal buckling and postbuckling of composite beams reinforced of functionally graded multilayer graphene platelets (GPLs) resting on nonlinear elastic foundations are examined.
Ying Lv, Jing Zhang, Lianhe Li
doaj   +1 more source

Contact Hamiltonian systems [PDF]

open access: yesJournal of Mathematical Physics, 2019
In this paper, we study Hamiltonian systems on contact manifolds, which is an appropriate scenario to discuss dissipative systems. We show how the dissipative dynamics can be interpreted as a Legendrian submanifold, and also prove a coisotropic reduction theorem similar to the one in symplectic mechanics; as a consequence, we get a method to reduce the
Lainz Valcázar, Manuel   +1 more
openaire   +3 more sources

Stochastic Port-Hamiltonian Systems

open access: yesJournal of Nonlinear Science, 2022
AbstractIn the present work we formally extend the theory of port-Hamiltonian systems to include random perturbations. In particular, suitably choosing the space of flow and effort variables we will show how several elements coming from possibly different physical domains can be interconnected in order to describe a dynamic system perturbed by general ...
Cordoni F.   +3 more
openaire   +4 more sources

Identifications of the coefficients of the Taylor expansion (second order) of periodic non-collision solutions for the perturbed planar Keplerian Hamiltonian system

open access: yesAIMS Mathematics, 2023
The discussion of disordered Keplerian Hamiltonian systems in our previously published study, which we verified, is expanded upon in this article. The collision semicircular orbit, and at least one other symmetric orbit is mentioned in this article.
Riadh Chteoui
doaj   +1 more source

ULTRADISCRETE HAMILTONIAN SYSTEMS [PDF]

open access: yesGlasgow Mathematical Journal, 2005
Summary: The method of ultradiscrete limit is applied to a series of discrete systems derived from Hamiltonian systems parametrized with corresponding lattice polygons. For every ultradiscrete system, general solution is obtained from the polar set of each lattice polygon.
Iwao, Masataka, Takahashi, Daisuke
openaire   +2 more sources

Real Hamiltonian forms of Hamiltonian systems [PDF]

open access: yesThe European Physical Journal B, 2004
We introduce the notion of a real form of a Hamiltonian dynamical system in analogy with the notion of real forms for simple Lie algebras. This is done by restricting the complexified initial dynamical system to the fixed point set of a given involution. The resulting subspace is isomorphic (but not symplectomorphic) to the initial phase space. Thus to
G. MARMO   +3 more
openaire   +5 more sources

q−Hamiltonian systems

open access: yesTURKISH JOURNAL OF MATHEMATICS, 2020
Summary: In this paper, we develop the basic theory of linear \(q\)-Hamiltonian systems. In this context, we establish an existence and uniqueness result. Regular spectral problems are studied. Later, we introduce the corresponding maximal and minimal operators for this system. Finally, we give a spectral resolution.
Bilender PAŞAOĞLU ALLAHVERDİEV   +1 more
openaire   +2 more sources

DISCRETE PORT HAMILTONIAN SYSTEMS [PDF]

open access: yesIFAC Proceedings Volumes, 2005
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Talasila, V.   +2 more
openaire   +3 more sources

An efficient linearly-implicit energy-preserving scheme with fast solver for the fractional nonlinear wave equation

open access: yesAIMS Mathematics, 2023
The paper considers the Hamiltonian structure and develops efficient energy-preserving schemes for the nonlinear wave equation with a fractional Laplacian operator. To this end, we first derive the Hamiltonian form of the equation by using the fractional
Tingting Ma , Yuehua He
doaj   +1 more source

QUANTUM BI-HAMILTONIAN SYSTEMS [PDF]

open access: yesInternational Journal of Modern Physics A, 2000
We define quantum bi-Hamiltonian systems, by analogy with the classical case, as derivations in operator algebras which are inner derivations with respect to two compatible associative structures. We find such structures by means of the associative version of Nijenhuis tensors. Explicit examples, e.g. for the harmonic oscillator, are given.
J.F. Carinena   +2 more
openaire   +4 more sources

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