Opuscula Math. 25, no. 2 (2005), 325-332

Opuscula Mathematica

The exact values of nonsquare constants for a class of Orlicz spaces

Jincai Wang

Abstract. We extend the \(M_{\triangle}\)-condition from [Han J.,Li X.: On Exact Value of Packing for a Class of Orlicz Spaces. (Chinese), Journal of Tongji Univ. 30 (2002) 7, 895–899] and introduce the \(\Phi_{\triangle}\)-condition at zero. Next we discuss nonsquare constant in Orlicz spaces generated by an \(N\)-function \(\Phi(u)\) which satisfy \(\Phi_{\triangle}\)-condition. We obtain exact value of nonsquare constant in this class of Orlicz spaces equipped with the Luxemburg norm.

Keywords: nonsquare constant, Orlicz space, \(\Phi_{\triangle}\)-condition.

Mathematics Subject Classification: 46B20, 46E30.

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  • Jincai Wang
  • Suzhou University, Department of Math., Suzhou, 215006 P. R. China
  • Received: 2005-03-19.
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Jincai Wang, The exact values of nonsquare constants for a class of Orlicz spaces, Opuscula Math. 25, no. 2 (2005), 325-332

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