Spectra of selfadjoint operators in constructive analysis
نویسندگان
چکیده
منابع مشابه
Non-selfadjoint Perturbations of Selfadjoint Operators in 2 Dimensions I
This is the first in a series of works devoted to small non-selfadjoint perturbations of selfadjoint h-pseudodifferential operators in dimension 2. In the present work we treat the case when the classical flow of the unperturbed part is periodic and the strength ǫ of the perturbation is ≫ h (or sometimes only ≫ h2) and bounded from above by hδ for some δ > 0. We get a complete asymptotic descri...
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ژورنال
عنوان ژورنال: Indagationes Mathematicae
سال: 1996
ISSN: 0019-3577
DOI: 10.1016/0019-3577(96)88654-x