Yurii Mikhailovich Smirnov
نویسندگان
چکیده
منابع مشابه
Yurii I. Lyubarskii and Kristian Seip
Assume that point evaluation is a bounded functional on H for each point z ∈ C, and also that H has the following symmetry property: H is closed under the operations f(z) 7→ f(z)(z− ζ)/(z− ζ) (provided f(ζ) = 0) and f(z) 7→ f(z). These assumptions ensure that H is a Hilbert space of entire functions in the sense of de Branges [4]. According to de Branges’ theory, there exists an entire function...
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Introduction: The Nagata-Smirnov Metrization theorem gives a full characterization of metrizable topological spaces. In other words, the theorem describes the necessary and sufficient conditions for a topology on a space to be defined using some metric. As a motivational example, consider the discrete topology on some space (every subset of the space is open). Though it might not be apparent to...
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1.1 Graded associative algebras. A nite Z-grading of an algebra A is a decomposition A = L n i=?n A i such that A i A j A i+j , where A i = 0 for jij > n. From now on a grading means a nite Z-grading. I am interested in associative graded algebras because they arise naturally in study of Lie algebras, although the subject is certainly interesting in its own right. A classiication of gradings of...
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ژورنال
عنوان ژورنال: Topology and its Applications
سال: 2013
ISSN: 0166-8641
DOI: 10.1016/j.topol.2013.04.008