Results 11 to 20 of about 1,216,806 (296)

Unique extension of the maximum entropy principle to phase coexistence in heat conduction

open access: yesPhysical Review Research, 2022
The maximum entropy principle determines the values of thermodynamic variables in thermally isolated equilibrium systems. This paper extends the principle to a variational principle that applies to liquid–gas coexistence in heat conduction.
Naoko Nakagawa, Shin-ichi Sasa
doaj   +1 more source

On Ekeland’s Variational Principle in Rectangular bmertic Spaces

open access: yesJournal of Harbin University of Science and Technology, 2020
Ekeland′s variational principle plays an important role in fixed point theory. It has applications in many fields such as optimization theory, control theory, critical point theory and others.
HUANG Shuai, CHEN Lili, LIU Xin
doaj   +1 more source

Theory of variational quantum simulation [PDF]

open access: yesQuantum, 2019
The variational method is a versatile tool for classical simulation of a variety of quantum systems. Great efforts have recently been devoted to its extension to quantum computing for efficiently solving static many-body problems and simulating real and ...
Xiao Yuan   +4 more
doaj   +1 more source

Herglotz type conservation laws for nonconservative nonholonomic systems

open access: yesAIP Advances, 2023
The Herglotz variational principle offers an effective method for studying nonconservative system dynamics. The aim of this paper is to study the conservation laws of nonholonomic systems by using the Herglotz type generalized variational principle and ...
Xinchang Dong, Yi Zhang
doaj   +1 more source

The Principle of Covariance and the Hamiltonian Formulation of General Relativity

open access: yesEntropy, 2021
The implications of the general covariance principle for the establishment of a Hamiltonian variational formulation of classical General Relativity are addressed.
Massimo Tessarotto, Claudio Cremaschini
doaj   +1 more source

A Predictor-Corrector Methods for Mixed Inverse Variational Inequalities [PDF]

open access: yes, 2009
In this paper, a class of mixed inverse variational inequalities is introduced and studied. We prove the existence of the solution of the auxiliary problem for mixed inverse variational inequalities, suggest a predictor-corrector method for solving the ...
Shi, Chaofeng
core   +3 more sources

The uncertainty principle: Variations on a theme [PDF]

open access: yesBulletin of the American Mathematical Society, 2021
We show how a number of well-known uncertainty principles for the Fourier transform, such as the Heisenberg uncertainty principle, the Donoho–Stark uncertainty principle, and Meshulam’s nonabelian uncertainty principle, have little to do with the structure of the Fourier transform itself.
Avi Wigderson, Yuval Wigderson
openaire   +2 more sources

Local variational principle [PDF]

open access: yesPhysical Review E, 2002
15 pages, 5 figures, one more section ...
openaire   +3 more sources

Variational Principles of Micromagnetics Revisited [PDF]

open access: yesSIAM Journal on Mathematical Analysis, 2020
We revisit the basic variational formulation of the minimization problem associated with the micromagnetic energy, with an emphasis on the treatment of the stray field contribution to the energy, which is intrinsically non-local. Under minimal assumptions, we establish three distinct variational principles for the stray field energy: a minimax ...
Giovanni Di Fratta   +3 more
openaire   +5 more sources

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

Home - About - Disclaimer - Privacy