Geodesic
Hölder estimates and hypoellipticity
Annales de l'Institut Fourier, Tome 26 (1976) no. 2, pp. 35-54.

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The aim of this paper is to show how, in order to prove regularity theorems, Hölder estimates, i.e. estimates involving products of powers of different semi-norms, can be used as well as standard estimates, and may in some instances be casier to prove.

Cet article a pour but de montrer comment, en vue de prouver certains théorèmes de régularité, des estimations classiques peuvent être remplacées par des estimations höldériennes, c’est-à-dire faisant intervenir des produits de puissances de différentes semi-normes ; ces dernières peuvent parfois être plus faciles à établir.

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Unterberger, André; Unterberger, Julianne. Hölder estimates and hypoellipticity. Annales de l'Institut Fourier, Tome 26 (1976) no. 2, pp. 35-54. doi : 10.5802/aif.613. http://geodesic.mathdoc.fr/articles/10.5802/aif.613/

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