标题:A renorming of <mml:math alttext="$\ell_2$" xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi>ℓ</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:math>, rare but with the fixed-point property
期刊名称:International Journal of Mathematics and Mathematical Sciences
印刷版ISSN:0161-1712
电子版ISSN:1687-0425
出版年度:2003
卷号:2003
DOI:10.1155/S0161171203305216
出版社:Hindawi Publishing Corporation
摘要:We give an example of a renorming of ℓ2 with the
fixed-point property (FPP) for nonexpansive mappings, but which seems
to fall out of the scope of all the commonly known sufficient
conditions for FPP.