Opuscula Math. 27, no. 1 (2007), 167-174

Opuscula Mathematica

J-convexity constants

Jincai Wang

Abstract. We introduce the \(J\)-convexity constants on Banach spaces and give some properties of the constants. We give the relations between the \(J\)-convexity constants and the \(n\)-th von Neumann-Jordan constants. Using the quantitative indices we estimate the value of \(J\)-convexity constants in Orlicz spaces.

Keywords: new quantitative index, \(J\)-convexity constants, \(n\)-th von Neumann-Jordan constants, Orlicz spaces.

Mathematics Subject Classification: 46B20, 46E30.

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  • Jincai Wang
  • Suzhou University, Department of Mathematics, P. R. China, 215006
  • Received: 2005-12-29.
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Cite this article as:
Jincai Wang, J-convexity constants, Opuscula Math. 27, no. 1 (2007), 167-174

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