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On the singular perturbation of nonlinear systems with turning points

✍ Scribed by Hanlin Zhang; Heping Zhang


Book ID
107483090
Publisher
Chinese Electronic Periodical Services
Year
1999
Tongue
English
Weight
221 KB
Volume
3
Category
Article
ISSN
1007-6417

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## Abstract We prove that for any self‐adjoint operator __A__ in a separable Hilbert space ℋ︁ and a given countable set Ξ› = {__Ξ»__ ~__i__~ }~__i__ βˆˆβ„•~ of real numbers, there exist ℋ︁~–2~‐singular perturbations __Γƒ__ of __A__ such that Ξ› βŠ‚ __Οƒ__ ~__p__~ (__Γƒ__). In particular, if Ξ› = {__Ξ»__ ~1~,…, _