Results 11 to 20 of about 4,339 (214)

The generalized Jacobi equation [PDF]

open access: yesClassical and Quantum Gravity, 2002
LaTeX file, 4 PS figures, 28 pages, revised version, accepted for publication in Classical and Quantum ...
Chicone, Carmen Charles   +1 more
openaire   +3 more sources

Algebraic solutions of Jacobi equations [PDF]

open access: yesMathematics of Computation, 2009
We propose an algorithm to compute exactly the algebraic solutions of Jacobi equations over the projective plane.
S. C. Coutinho, Marcos da Silva Ferreira
openaire   +1 more source

Controllability of Laguerre and Jacobi equations [PDF]

open access: yesInternational Journal of Control, 2007
In this paper we study the controllability of the controlled Laguerre equation and the controlled Jacobi equation. For each case, we find conditions which guarantee when such systems are approximately controllable on the interval [0, t 1]. Moreover, we show that these systems can never be exactly controllable.
Diomedes Barcenas   +3 more
openaire   +1 more source

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

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. We then specialize to the case of a free particle in one space and one time dimension, and study of local ...
Boyer, C.P., Kalnins, Ernie G.
openaire   +3 more sources

Resurgence in a Hamilton-Jacobi equation [PDF]

open access: yesAnnales de l'Institut Fourier, 2003
We study the resurgent structure associated with a Hamilton-Jacobi equation. This equation is obtained as the inner equation when studying the separatrix splitting problem for a perturbed pendulum via complex matching. We derive the Bridge equation, which encompasses infinitely many resurgent relations satisfied by the formal solution ...
Olivé, Carme   +2 more
openaire   +2 more sources

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

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

Differential Equations for Jacobi-Pineiro Polynomials [PDF]

open access: yesComputational Methods and Function Theory, 2006
For $r\in \Z_{\geq 0}$, we present a linear differential operator %$(\di)^{r+1}+ a_1(x)(\di)^{r}+...+a_{r+1}(x)$ of order $r+1$ with rational coefficients and depending on parameters. This operator annihilates the $r$-multiple Jacobi-Piñeiro polynomial.
Mukhin, Eugene, Varchenko, Alexander
openaire   +2 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

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