Results 11 to 20 of about 8,396,712 (346)

The maximum principle with lack of monotonicity [PDF]

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2018
We establish a maximum principle for the weighted $(p,q)$-Laplacian, which extends the general Pucci–Serrin strong maximum principle to this quasilinear abstract setting.
Patrizia Pucci, Vicenţiu Rădulescu
doaj   +4 more sources

The Hybrid Maximum Principle is a consequence of Pontryagin Maximum Principle [PDF]

open access: yesSystems and Control Letters, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
A. V. Dmitruk, A. M. Kaganovich
exaly   +2 more sources

A principle of maximum ignorance for semiclassical gravity [PDF]

open access: yesJournal of High Energy Physics, 2023
The principle of maximum ignorance posits that the coarse-grained description of a system is maximally agnostic about its underlying microscopic structure.
Jan de Boer   +3 more
doaj   +2 more sources

Lagrangian submanifolds generated by the Maximum Entropy principle [PDF]

open access: yesEntropy, 2005
We show that the Maximum Entropy principle (E.T. Jaynes, [8]) has a natural description in terms of Morse Families of a Lagrangian submanifold. This geometric approach becomes useful when dealing with the M.E.P. with nonlinear constraints.
Marco Favretti
doaj   +2 more sources

A Strong Maximum Principle for Nonlinear Nonlocal Diffusion Equations

open access: yesAxioms, 2023
We consider a class of nonlinear integro-differential equations that model degenerate nonlocal diffusion. We investigate whether the strong maximum principle is valid for this nonlocal equation. For degenerate parabolic PDEs, the strong maximum principle
Tucker Hartland, Ravi Shankar
doaj   +2 more sources

Finite element methods respecting the discrete maximum principle for convection-diffusion equations [PDF]

open access: yesarXiv.org, 2022
Convection-diffusion-reaction equations model the conservation of scalar quantities. From the analytic point of view, solution of these equations satisfy under certain conditions maximum principles, which represent physical bounds of the solution.
G. Barrenechea, V. John, P. Knobloch
semanticscholar   +1 more source

Introduction to the Pontryagin Maximum Principle for Quantum Optimal Control [PDF]

open access: yesPRX Quantum, 2020
Optimal Control Theory is a powerful mathematical tool, which has known a rapid development since the 1950s, mainly for engineering applications. More recently, it has become a widely used method to improve process performance in quantum technologies by ...
U. Boscain, M. Sigalotti, D. Sugny
semanticscholar   +1 more source

On energy stable, maximum-principle preserving, second order BDF scheme with variable steps for the Allen-Cahn equation [PDF]

open access: yesSIAM Journal on Numerical Analysis, 2020
In this work, we investigate the two-step backward differentiation formula (BDF2) with nonuniform grids for the Allen-Cahn equation. We show that the nonuniform BDF2 scheme is energy stable under the time-step ratio restriction $r_k:=\tau_k/\tau_{k-1}
Hong-lin Liao, T. Tang, Tao Zhou
semanticscholar   +1 more source

Arbitrarily high-order exponential cut-off methods for preserving maximum principle of parabolic equations [PDF]

open access: yesSIAM Journal on Scientific Computing, 2020
A new class of high-order maximum principle preserving numerical methods is proposed for solving parabolic equations, with application to the semilinear Allen--Cahn equation.
Buyang Li, Jiang Yang, Zhi Zhou
semanticscholar   +1 more source

The maximum entropy principle for compositional data

open access: yesBMC Bioinformatics, 2022
Background Compositional systems, represented as parts of some whole, are ubiquitous. They encompass the abundances of proteins in a cell, the distribution of organisms in nature, and the stoichiometry of the most basic chemical reactions.
Corey Weistuch   +3 more
doaj   +1 more source

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