skip to main content
LOTERRE

LOTERRE

Astronomy (thesaurus)

Choisissez le vocabulaire dans lequel chercher

Langue des données

| español English
Aide à la recherche

Concept information

theoretical physics aspects > quantum mechanics > operator > differential operator > elliptic operator

Terme préférentiel

elliptic operator  

Définition(s)

  • In the theory of partial differential equations, elliptic operators are differential operators that generalize the Laplace operator. They are defined by the condition that the coefficients of the highest-order derivatives be positive, which implies the key property that the principal symbol is invertible, or equivalently that there are no real characteristic directions. Elliptic operators are typical of potential theory, and they appear frequently in electrostatics and continuum mechanics. Elliptic regularity implies that their solutions tend to be smooth functions (if the coefficients in the operator are smooth). Steady-state solutions to hyperbolic and parabolic equations generally solve elliptic equations. (Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/wiki/Elliptic_operator)

Concept(s) générique(s)

Concept(s) associé(s)

Synonyme(s)

  • elliptical operator

Traductions

URI

http://data.loterre.fr/ark:/67375/MDL-CT1D068L-L

Télécharger ce concept:

RDF/XML TURTLE JSON-LD Dernière modif. 24/04/2023