A Pseudo Differential Operator which Shifts the Wave Front Set
نویسندگان
چکیده
منابع مشابه
On the asymptotic eigenvalue distribution of a pseudo-differential operator.
A description of the number N(K) of eigenvalues less than K for a pseudo-differential operator with positive symbol is given in terms of the number of unit cubes canonically imbedded in the subset of phase space where the symbol is less than CK. This gives back in particular the order of magnitude of N(K) for elliptic symbols.
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ژورنال
عنوان ژورنال: Proceedings of the American Mathematical Society
سال: 1978
ISSN: 0002-9939
DOI: 10.2307/2042785