Results 11 to 20 of about 20,117 (161)

Relative Entropy and Variational Properties of Generalized Gibbsian Measures [PDF]

open access: yes, 2004
We study the relative entropy density for generalized Gibbs measures. We first show its existence and obtain a familiar expression in terms of entropy and relative energy for a class of “almost Gibbsian measures” (almost sure continuity of conditional ...
Ny, Arnaud Le,   +12 more
core   +1 more source

Variational principles and variational—iterative principles for a class of problems

open access: yesJournal of Mathematical Analysis and Applications, 1981
AbstractComplementary variational principles are developed for linear equations in a function space and a variational-iterative scheme, based on these principles, is introduced for non-linear equations.
Burrows, B.L, Perks, A.J
openaire   +1 more source

Variational Principles for Consolidation

open access: yesSoils and Foundations, 1971
ABSTRACT The purpose of this paper is to derive, as a basis of the finite element method, a generalized variational principle for consolidation under the following assumptions: Soil is inhomogeneous, anisotropically elastic with respect to effective stress, and saturated by incompressible water; deformation of soil does not depend on pore water ...
YOKOO, YOSHITSURA   +2 more
openaire   +2 more sources

Variational Time Integrators in Computational Solid Mechanics [PDF]

open access: yes, 2003
This thesis develops the theory and implementation of variational integrators for computational solid mechanics problems, and to some extent, for fluid mechanics problems as well.
Lew, Adrián José
core   +1 more source

Variational Methods in Surface Parameterization [PDF]

open access: yes, 2005
A surface parameterization is a function that maps coordinates in a 2-dimensional parameter space to points on a surface. This thesis investigates two kinds of parameterizations for surfaces that are disc-like in shape.
Litke, Nathan Jacob
core   +1 more source

Hamilton-Pontryagin Integrators on Lie Groups [PDF]

open access: yes, 2007
In this thesis structure-preserving time integrators for mechanical systems whose configuration space is a Lie group are derived from a Hamilton-Pontryagin (HP) variational principle.
Bou-Rabee, Nawaf Mohammed
core   +1 more source

Numerical analysis of a relaxed variational model of hysteresis in two-phase solids [PDF]

open access: yes, 2001
This paper presents the numerical analysis for a variational formulation of rate-independent phase transformations in elastic solids due to Mielke et al.
Carstensen, Carsten   +3 more
core   +1 more source

A Variational Principle in Krein Space [PDF]

open access: yesTransactions of the American Mathematical Society, 1994
A variational characterization, involving a max-inf of the Rayleigh quotient, is established for certain eigenvalues of a wide class of definitizable selfadjoint operators Q in a Krein space.
Binding, Paul, Najman, Branko
openaire   +2 more sources

Variational semi-blind sparse deconvolution with orthogonal kernel bases and its application to MRFM [PDF]

open access: yes, 2014
We present a variational Bayesian method of joint image reconstruction and point spread function (PSF) estimation when the PSF of the imaging device is only partially known.
Se Un Parka   +5 more
core   +1 more source

On the structure of minimizers of causal variational principles in the non-compact and equivariant settings

open access: yes, 2012
We derive the Euler-Lagrange equations for minimizers of causal variational principles in the non-compact setting with constraints, possibly prescribing symmetries.
Finster, Felix, Bernard, Yann
core   +1 more source

Home - About - Disclaimer - Privacy