Skip to main content
Log in

On the upper bounds of WCS coefficients in Orlicz function spaces

  • Published:
Rendiconti del Circolo Matematico di Palermo Aims and scope Submit manuscript

Abstract

Let Φ(u) be an N-function and let \(L^{(\Phi)}[0, 1]\) and \(L^{\Phi}[0, 1]\) be the Orlicz function spaces equipped with the gauge norm and the Orlicz norm respectively. The author refines some results on the upper bounds of the weak convergent sequence coefficients \(WCS(L^{(\Phi)}[0, 1])\) and \(WCS(L^{\Phi}[0, 1])\) given in [8] and [7, Ch.3.2]. Theorems 1 and 2 are given in Section 2. Several examples, given in Section 3, are used to make comments upon the papers of Yan [11], [12] and [13].

Keywords Orlicz space, WCS coefficient and normal structure coefficient

Mathematics Subject Classification (2000) 46B30

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  • 1. Bynum, W.: Normal structure coefficients for Banach spaces, Pacific J. Math., 86 (1980), 427–435

    Google Scholar 

  • 2. Chen, S.T.: Geometry of Orlicz Spaces, Dissertationes Math., 356 (1996), 1–204

  • 3. Cleaver, C.E.: On the extension of Lipschitz-Hölder maps on Orlicz spaces, Studia Math., 42 (1972), 195–204

  • 4. Guerre Delabriere, S.: Classical Sequences in Banach Spaces, Marcel Dekker Inc., New York, 1992

  • 5. Krasnoselskii, M.A., Rutickii, Ya.B.: Convex Functions and Orlicz Spaces, Noordhoff Groningen, 1961

  • 6. Rao, M.M., Ren, Z.D.: Theory of Orlicz Spaces, Marcel Dekker Inc., New York, 1991

  • 7. Rao, M.M., Ren, Z.D.: Applications of Orlicz Spaces, Marcel Dekker Inc., New York, 2002

  • 8. Ren, Z.D.: Some geometric coefficients in Orlicz function spaces, Lect. Notes in Pure and Applied Math., Marcel Dekker Inc., 175 (1996), 391–404

  • 9. Ren, Z.D.: Nonsquare constants of Orlicz spaces, Lect. Notes in Pure and Applied Math., Marcel Dekker Inc., 186 (1997), 179–197

  • 10. Sims, B., Smyth, M.A.: On some Banach space properties sufficient for weak normal structure and their permanence properties, Trans. Amer. Math. Soc., 315 (1999), 497–513

    Google Scholar 

  • 11. Yan, Y.Q.: The exact value of normal structure coefficients and WCS coefficients in a class of Orlicz function spaces, Funct. Anal. Appl. (translation), 39 (2005), No.4, 321–323

    Google Scholar 

  • 12. Yan, Y.Q.: The exact value of normal structure coefficients in a class of Orlicz sequence spaces, Rend. Circ. Mat. Palermo, 53 (2004), No.3, 353–368

    Google Scholar 

  • 13. Yan, Y.Q.: On the exact value of Jung constants of Orlicz sequence spaces, Collect. Math., 55 (2004), No.2, 163–170

    Google Scholar 

  • 14. Zhang, G.L.: Weakly convergent sequence coefficient of product space, Proc. Amer. Math. Soc., 117 (1993), 637–643

    Google Scholar 

  • 15. Zhang, T.: Jung constants of Orlicz sequence spaces, Ann. Polon. Math., 81 (2003), No.1, 25–45

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Ren, Z.D. On the upper bounds of WCS coefficients in Orlicz function spaces. Rend. Circ. Mat. Palermo 57, 125–140 (2008). https://doi.org/10.1007/s12215-008-0007-6

Download citation

  • Received:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s12215-008-0007-6

Keywords

Navigation