On James and Jordan- von Neumann constants of Lorentz sequence spaces

Authors
Kato, M Maligranda, L
Citation
M. Kato et L. Maligranda, On James and Jordan- von Neumann constants of Lorentz sequence spaces, J MATH ANAL, 258(2), 2001, pp. 457-465
Citations number
11
Categorie Soggetti
Mathematics
Journal title
JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS
ISSN journal
0022247X → ACNP
Volume
258
Issue
2
Year of publication
2001
Pages
457 - 465
Database
ISI
SICI code
0022-247X(20010615)258:2<457:OJAJVN>2.0.ZU;2-O
Abstract
The nonsquare or James constant J(X) and the Jordan-von Neumann constant C- NJ(X) are computed for two-dimensional Lorentz sequence spaces d((2))(w, q) in the case where 2 less than or equal to q < infinity. The Jordan-von Neu mann constant is also calculated in the case where 1 less than or equal to q < 2. (C) 2001 Academic Press.