Propagation de l'analyticité locale pour les solutions de l'équation d'Euler. (Propagation of local analyticity for the solutions of the Euler equation)
Suppose the initial data and the body forces are analytic for a stream tube of an incompressibl Euler flow. The authors prove that the solution to the Euler equations is analytic on this stream tube. A special family of semi-norms is introduced in order to study the local regularity.
scientific article; zbMATH DE number 3980726