Hypoellipticity of Some Degenerate Subel
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J.J Kohn
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Article
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1998
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Elsevier Science
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English
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The purpose of this paper is to establish the following result. Let L 1 and L 2 be subelliptic operators on R n x and R m y , respectively. Assume that \* # C (R n x ) with \* 0, assume that \* has a zero of infinite order at the origin and that all other zeroes of \* are of finite order. Then the