Results 41 to 50 of about 20,117 (161)

An extention of gibbs variational principle for canonical partition function [PDF]

, 2013
A variational principle is derived based upon the canonical partition functions. This variational principle is obtained using the Gibbs variational principle. Firstly, the Gibbs variational principle is highlighted for the canonical ensemble.
Dwandaru, Wipsar Sunu Brams, Noviani, Elisabeth Pratidhina Founda   +1 more
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A parametric variational principle and residuality

, 2009
We prove a parametric version of a smooth convex variational principle with constraints using a Baire category approach.
Robert Deville, Antonín Procházka, Deville, Robert, Procházka, Antonín   +3 more
core   +1 more source

Variational Principle for Mass Transport

Physical Review Letters, 2018
A variation principle for mass transport in solids is derived that recasts transport coefficients as minima of local thermodynamic average quantities. The result is independent of diffusion mechanism, and applies to amorphous and crystalline systems.
openaire   +4 more sources

Variational inclusions problems with applications to Ekeland variational principle ,fixed point and optimization problems

, 2011
[[abstract]]In this paper, we prove the existence theorems of two types of systems of variational inclusions problem. From these existence results, we establish Ekeland’s variational principle on topological vector space, existence theorems of common ...
L. J. Lin
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An adaptive finite element approximation of a variational model of brittle fracture [PDF]

, 2010
The energy of the Francfort–Marigo model of brittle fracture can be approximated, in the sense of Gamma-convergence, by the Ambrosio–Tortorelli functional.
Christoph Ortner, Burke, S, Süli, E, Ortner, Christoph, Ortner, C, Siobhan Burke, Süli, Endre, Endre Süli, Burke, Siobhan   +8 more
core   +1 more source

Variational principles and the patch test

International Journal for Numerical Methods in Engineering, 1974
AbstractThe patch test is shown to be contained in the variational formulations of the finite element methods at the assembling level, all of which require the vanishing of the virtual work of interface connection loads. By a systematic introduction of stress generating functions, attention is drawn to the fact that any given finite element model can ...
openaire   +3 more sources

Schwinger variational principle for multichannel scattering [PDF]

, 1980
This Letter presents the first application of the Schwinger variational principle for multichannel scattering. Results are presented for an exactly soluble two-channel model problem. The accuracy and convergence of the Schwinger variational principle are
McKoy, Vincent, Takatsuka, Kazuo
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Parametric Ekeland's variational principle

, 2001
A parametrized version of Ekeland's variational principle is proved, showing that under suitable conditions, the minimum point of the perturbed function can be chosen to depend continuously on a parameter.
Georgiev, P.G., P.G. Georgiev
core   +1 more source

Existence Theorems for Variational Inclusion Problems and the Set-valued Vector Ekeland Variational Principle in a Complete Metric Space

, 2011
[[abstract]]In this paper, we apply an existence theorem for the variational inclusion problem to study the existence results for the variational intersection problems in Ekeland’s sense and the existence results for some variants of set-valued vector ...
Lin Lai-Jiu; Chih-Sheng Chuan
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New variational principle for transport theory

, 1958
A general variational principle of Kahan, Rideau, and Roussopoulos is shown to be applicable to problems of transport theory and in particular to the solution of the Milne problem.
Devooght, Jacques
core   +1 more source