Results 11 to 20 of about 114,514,341 (131)

Hamilton–Jacobi–Bellman Equations in Stochastic Geometric Mechanics

open access: yesThe 41st International Workshop on Bayesian Inference and Maximum Entropy Methods in Science and Engineering, 2022
This paper summarises a new framework of Stochastic Geometric Mechanics that attributes a fundamental role to Hamilton–Jacobi–Bellman (HJB) equations.
Qiao Huang, Jean-Claude Zambrini
openaire   +2 more sources

A discontinuous Galerkin moving mesh method for Hamilton-Jacobi equations [PDF]

open access: yes, 2007
In this paper we consider the numerical solution of first-order Hamilton-Jacobi equations using the combination of a discontinuous Galerkin finite element method and an adaptive $r$-refinement (mesh movement) strategy.
MacKenzie, John, Nicola, Aurelian
core   +4 more sources

Mechanics of infinitesimal gyroscopes on helicoid-catenoid deformation family of minimal surfaces [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2021
In this paper we explore the mechanics of infinitesimal gyroscopes (test bodies with internal degrees of freedom) moving on an arbitrary member of the helicoid-catenoid family of minimal surfaces.
Vasyl Kovalchuk   +2 more
doaj   +1 more source

Diffusion Effect in Quantum Hydrodynamics

open access: yesAxioms, 2022
In this paper, we introduce (at least formally) a diffusion effect that is based on an axiom postulated by Werner Heisenberg in the early days of quantum mechanics.
Moise Bonilla-Licea   +2 more
doaj   +1 more source

Hamilton-Jacobi and Lagrange Formulations of Relativistic Quantum Mechanics Wave Equations with Solutions with Only-Positive and Only-Negative Kinetic Energies [PDF]

open access: yesJournal of Modern Physics, 2022
Abstract Using the Hamilton-Jacobi and the Lagrange formalisms, a pair of relativistic quantum mechanics equations are obtained. These equations, in contrast with the Klein-Gordon and other relativistic quantum mechanics equations, have no solutions with both positive and negative kinetic energies. The equation with solutions with only positive
Luis Grave de Peralta   +1 more
openaire   +1 more source

A unified framework for mechanics: Hamilton–Jacobi equation and applications [PDF]

open access: yesNonlinearity, 2010
In this paper, we construct Hamilton-Jacobi equations for a great variety of mechanical systems (nonholonomic systems subjected to linear or affine constraints, dissipative systems subjected to external forces, time-dependent mechanical systems...). We recover all these, in principle, different cases using a unified framework based on skew-symmetric ...
Balseiro, P.   +3 more
openaire   +2 more sources

Phase Shifts and the Quantum-Mechanical Hamilton—Jacobi Equation [PDF]

open access: yesThe Journal of Chemical Physics, 1965
A method of obtaining absolute phase shifts by integration of the quantum-mechanical Hamilton—Jacobi equation is developed and applied to the example of particles interacting through a Lennard-Jones potential. A new expression for the absolute phase shift is obtained in terms of an irregular solution of the Schrödinger equation.
Donald J. Kouri, C. F. Curtiss
openaire   +1 more source

The Quantum Hamilton–Jacobi Equation and the Link Between Classical and Quantum Mechanics

open access: yesQuanta, 2022
We study how the classical Hamilton's principal and characteristic functions are generated from the solutions of the quantum Hamilton–Jacobi equation. While in the classically forbidden regions these quantum quantities directly tend to the classical ones, this is not the case in the allowed regions.
openaire   +3 more sources

The World as a Neural Network

open access: yesEntropy, 2020
We discuss a possibility that the entire universe on its most fundamental level is a neural network. We identify two different types of dynamical degrees of freedom: “trainable” variables (e.g., bias vector or weight matrix) and “hidden” variables (e.g.,
Vitaly Vanchurin
doaj   +1 more source

Estimates for multiple stochastic integrals and stochastic Hamilton-Jacobi equations [PDF]

open access: yes, 2004
We study stochastic Hamilton-Jacobi-Bellman equations and the corresponding Hamiltonian systems driven by jump-type Lévy processes. The main objective of the present paper is to show existence, uniqueness and a (locally in time) diffeomorphism ...
Kolokoltsov, V. N. (Vasiliĭ Nikitich)   +10 more
core   +1 more source

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