Title of article :
An inequality between Jordan–von Neumann constant and James constant
Author/Authors :
Yang، نويسنده , , Changsen and Li، نويسنده , , Haiying، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2010
Abstract :
Let X be a non-trivial Banach space. L. Maligranda conjectured C N J ( X ) ≤ 1 + J ( X ) 2 / 4 for James constant J ( X ) and von Neumann–Jordan constant C N J ( X ) for X . Recently, J. Alonso et al. gave a proof of it and conjectured that C N J ( X ) ≤ J ( X ) is also valid. In this paper, we show that this conjecture is true.
Keywords :
Jordan–von Neumann constant , James constant
Journal title :
Applied Mathematics Letters
Journal title :
Applied Mathematics Letters