On Kottman's constants in Banach spaces

• Autorzy: Jesús M. F. Castillo , Pier Luigi Papini
• Języki publikacji: EN

Abstrakty

EN

This paper deals with a few, not widely known, aspects of Kottman's constant of a Banach space and its symmetric and finite variations. We will consider their behaviour under ultrapowers, relations with other parameters such as Whitley's or James' constant, and connection with the extension of c₀-valued Lipschitz maps.

Kategorie tematyczne

• 46B20: Geometry and structure of normed linear spaces
• 46B04: Isometric theory of Banach spaces
• 46B08: Ultraproduct techniques in Banach space theory

• Wydawca: Institute of Mathematics Polish Academy of Sciences
• Czasopismo: Banach Center Publications
• Rocznik: 2011
• Tom: 92
• Numer: 1
• Strony: 75-84

Daty

wydano

2011

Twórcy

autor

Jesús M. F. Castillo

• Departamento de Matemáticas, Universidad de Extremadura, Avenida de Elvas s/n, 06071 Badajoz, España

autor

Pier Luigi Papini

• Dipartimento di Matematica, Universitá degli Studi di Bologna, Piazza Porta S. Donato 5, 40126 Bologna, Italia

Identyfikatory

DOI

10.4064/bc92-0-5