Essential spectra of linear relations
نویسندگان
چکیده
منابع مشابه
Stability of essential spectra of bounded linear operators
In this paper, we show the stability of Gustafson, Weidmann, Kato, Wolf, Schechter and Browder essential spectrum of bounded linear operators on Banach spaces which remain invariant under additive perturbations belonging to a broad classes of operators $U$ such $gamma(U^m)
متن کاملstability of essential spectra of bounded linear operators
in this paper, we show the stability of gustafson, weidmann, kato, wolf, schechter and browder essential spectrum of bounded linear operators on banach spaces which remain invariant under additive perturbations belonging to a broad classes of operators $u$ such $gamma(u^m)
متن کاملSpectra of structures and relations
We consider embeddings of structures which preserve spectra: if g : M → S with S computable, then M should have the same spectrum (as a structure) that g(M) has (as a relation on S). We show that the computable dense linear order L is universal for all countable linear orders under this notion of embedding, and we establish a similar result for the computable random graph G. Such structures are...
متن کاملDegree spectra of relations on computable structures
§0. Introduction. There has been increasing interest over the last few decades in the study of the effective content of Mathematics. One field whose effective content has been the subject of a large body of work, dating back at least to the early 1960s, is model theory. (A valuable reference is the handbook [7]. In particular, the introduction and the articles by Ershov and Goncharov and by Har...
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ژورنال
عنوان ژورنال: Linear Algebra and its Applications
سال: 2014
ISSN: 0024-3795
DOI: 10.1016/j.laa.2014.07.006