Titlebook: Descriptive Topology in Selected Topics of Functional Analysis; Jerzy Kąkol,Wiesław Kubiś,Manuel López-Pellicer Book 20111st edition Sprin

吼叫

Philip H. Dybvig,Stephen A. Ross particular, we discuss the class of Valdivia compact spaces and its subclasses: Corson and Eberlein compact spaces. We discuss a general class of compact spaces obtained by limits of continuous retractive sequences. We also introduce the notion of a retractional skeleton, dual to projectional skele

CAPE

,Fréchet–Urysohn Spaces and Groups,r each .⊂. and each . there exists a sequence in . converging to .). The main result states that every sequentially complete Fréchet–Urysohn lcs is a Baire space. Since every infinite-dimensional Montel (.)-space . is nonmetrizable and sequential, the following question arises: Is every Fréchet–Urysohn space in the class . metrizable?

随意

,Tightness and Distinguished Fréchet Spaces, its strong dual has countable tightness. This approach to studying distinguished Fréchet spaces leads to a rich supply of (.)-spaces whose .. duals are quasi-Suslin but not K-analytic. The small cardinals . and . will be used to improve the analysis of Köthe’s echelon nondistinguished Fréchet space ..(.).

元音

Jerzy Kąkol,Wiesław Kubiś,Manuel López-PellicerPresents numerous results that have previously only appeared in journal publications.Includes several newly developed and unpublished results.Can serve a supplementary text in course focusing on selec

上流社会

stratum-corneum

Entrepreneurship in the FinTech IndustryThe first chapter contains an overview of the material contained in the book, with several historical comments and links to the bibliography.

哑巴

SupTech Practices by Chinese RegulatorsIn this chapter, we continue the study of web-compact spaces. A subclass of web-compact spaces called strongly web-compact, is introduced, and a closed graph theorem for such spaces is provided. We prove that an own product of a strongly web-compact space need not be web-compact.

capillaries

战胜

Final Girls, Feminism and Popular CultureThis chapter presents unified and direct proofs of Pfister, Cascales and Orihuela and Valdivia’s theorems about metrizability of precompact sets in (.)-spaces, (.)-spaces and dual metric spaces, respectively. The proofs do not require the typical machinery of quasi-Suslin spaces, upper semicontinuous compact-valued maps and so on.

爱得痛了

Towards a Social Science of NatureIn this chapter, the class of Banach spaces having the property (.) (isolated by Corson) is studied. This property provides a large subclass of Banach spaces . whose weak topology need not be Lindelöf. We collect some results of Corson, Pol, Frankiewicz, Plebanek and Ryll-Nardzewski.