Results 11 to 20 of about 10,247 (176)

Symmetries of the Hamilton–Jacobi equation [PDF]

open access: yesJournal of Mathematical Physics, 1977
We present a detailed discussion of the infinit esimal symmetries of the Hamilton-Jacobi equation (an arbitrary first order partial equation) Our presentation clucidates the role played by the characteristic system in determining the symmetries.
Kalnins, Ernie G.   +3 more
core   +4 more sources

Relaxation of Hamilton-Jacobi equations

open access: yesArchive for Rational Mechanics and Analysis, 2003
We study the relaxation of Hamilton-Jacobi equations. The relaxation in our terminology is the following phenomenon: the pointwise supremum over a certain collection of subsolutions, in the almost everywhere sense, of a Hamilton-Jacobi equation yields a ...
LORETI, Paola, Hitoshi Ishii
core   +2 more sources

Hamilton–Jacobi equations [PDF]

open access: yes, 2010
In this chapter we discuss numerical methods for the solution of general Hamilton-Jacobi equations of the form $${\phi _t} + H\left( {\nabla \phi } \right) = 0$$ (5.1) where H can be a function of both space and time. In three spatial dimensions, we can write $${\phi _t} + H\left( {{\phi _x},{\phi _y},{\phi _z}} \right) = 0$$ (5.2 ...
Stanley Osher, Ronald Fedkiw
  +5 more sources

Hamilton Jacobi Equations with Obstacles [PDF]

open access: yesArchive for Rational Mechanics and Analysis, 2010
We consider a problem in the theory of optimal control proposed for the first time by Bressan. We characterize the associated minimum time function using tools from geometric measure theory and we obtain, as a corollary, an existence theorem for a related variational problem.
De Lellis, Camillo, Robyr, R
openaire   +1 more source

Hamilton–Jacobi equations on an evolving surface [PDF]

open access: yesMathematics of Computation, 2019
We consider the well-posedness and numerical approximation of a Hamilton--Jacobi equation on an evolving hypersurface in $\mathbb R^3$. Definitions of viscosity sub- and supersolutions are extended in a natural way to evolving hypersurfaces and provide uniqueness by comparison. An explicit in time monotone numerical approximation is derived on evolving
Klaus Deckelnick   +3 more
openaire   +3 more sources

THE HAMILTON–JACOBI EQUATION ON LIE AFFGEBROIDS [PDF]

open access: yesInternational Journal of Geometric Methods in Modern Physics, 2006
The Hamilton–Jacobi equation for a Hamiltonian section on a Lie affgebroid is introduced and some examples are discussed.
Marrero, J. C., Sosa, D.
openaire   +3 more sources

Hamilton-Jacobi Equations with State Constraints [PDF]

open access: yesTransactions of the American Mathematical Society, 1990
In the present paper we consider Hamilton-Jacobi equations of the form H ( x , u
CAPUZZO DOLCETTA, Italo, P. L. Lions
openaire   +1 more source

Hypercontractivity of Hamilton–Jacobi equations

open access: yesJournal de Mathématiques Pures et Appliquées, 2001
Using the equivalence of logarithmic Sobolev inequalities and hypercontractivity of the associated heat semigroup proved by \textit{L. Gross} [Am. J. Math. 97(1975), 1061--1083 (1976; Zbl 0318.46049)], the authors show that logarithmic Sobolev inequalities are similarly related to hypercontractivity of the solutions of Hamilton-Jacobi equations.
Bobkov, Sergey G   +2 more
openaire   +2 more sources

Quantum Hamilton-Jacobi Equation [PDF]

open access: yesPhysical Review Letters, 1998
The nontrivial transformation of the phase space path integral measure under certain discretized analogues of canonical transformations is computed. This Jacobian is used to derive a quantum analogue of the Hamilton-Jacobi equation for the generating function of a canonical transformation that maps any quantum system to a system with a vanishing ...
openaire   +2 more sources

Hamilton–Jacobi equations for nonholonomic dynamics [PDF]

open access: yesJournal of Mathematical Physics, 2005
We derive generalized Hamilton–Jacobi equations for dynamical systems subject to linear velocity constraints. As long as a solution of the generalized Hamilton–Jacobi equation exists, the action is actually minimized (not just extremized).
openaire   +2 more sources

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