Abstract
Communications on Pure and Applied MathematicsVolume 14, Issue 4 p. 737-744 Article A proof of the hypoellipticity of formally hypoelliptic differential operators† Jaak Peetre, Jaak PeetreSearch for more papers by this author Jaak Peetre, Jaak PeetreSearch for more papers by this author First published: November 1961 https://doi.org/10.1002/cpa.3160140406Citations: 6 † This paper was written when the author was a temporary member of the Institute of Mathematical Sciences, New York University, under the sponsorship of the National Science Foundation. AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Citing Literature Volume14, Issue4November 1961Pages 737-744 RelatedInformation
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