We give criteria for uniform rotundity of Musielak-Orlicz-Bochner function spaces equipped with Orlicz norm are given. We also prove that, in Musielak-Orlicz-Bochner function spaces, uniform rotundity and kk-uniform rotundity are equivalent. Moreover, we give a sufficient condition for a Musielak-Orlicz-Bochner function space to have the fixed point property.

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Shaoqiang Shang

Dept. of Mathematics, Northeast Forestry University, Harbin 150040, P. R. China

sqshang@163.com

Yunan Cui

Dept. of Mathematics, Harbin University of Science and Technology, Harbin 150080, P. R. China

cuiya@hrbust.edu.cn
  1. F. E. Browder: Fixed point theorems for noncompact mappings in Hilbert space, Proc. Natl. Acad. Sci. USA 43 (1965) 1272–1276.https://doi.org/10.1073/pnas.53.6.1272Google Scholar
  2. F. E. Browder: Nonexpansive nonlinear operators in a Banach space, Proc. Natl. Acad. Sci. USA 54 (1965) 1041–1044.https://doi.org/10.1073/pnas.54.4.1041Google Scholar
  3. S. T. Chen: Geometry of Orlicz Spaces, Dissertations Math., Polish Academy of Sciences, Warsaw (1996).Google Scholar
  4. Y. Cui, H. Hudzik, J. Li, M. Wisła: Strongly extreme points in Orlicz spaces equipped with the p-Amemiya norm, Nonlinear Anal. 71 (2009) 6343–6364.https://doi.org/10.1016/j.na.2009.06.085Google Scholar
  5. P. N. Dowling, C. J. Lennard, B. Turett: Weak compactness is equivalent to the fixed point property in c0, Proc. Amer. Math. Soc. 132 (2004) 1659–1666.https://doi.org/10.1090/S0002-9939-04-07436-2Google Scholar
  6. L. Fang, H. Hudzik, T. F. Wang: Uniform Gateaux differentiability and weak uniform rotundity in Musielak-Orlicz function spaces, Nonlinear Anal. 56 (2004) 1133–1149.https://doi.org/10.1016/j.na.2003.11.007Google Scholar
  7. P. Foralewski, H. Hudzik, P. Kolwicz: Non-squareness properties of Orlicz-Lorentz sequence spaces, J. Funct. Anal. 264 (2013) 605–629.https://doi.org/10.1016/j.jfa.2012.10.014Google Scholar
  8. D. Gohde: Zum Prinzip der kontraktiven Abbildung, Math. Nachr. 30 (1965) 251–258.https://doi.org/10.1002/mana.19650300312Google Scholar
  9. H. Hudzik: On some equivalent conditions in Musielak-Orlicz spaces, Ann. Soc. Math. Pol., Ser. I, Commentat. Math. 24 (1984) 57–64.Google Scholar
  10. H. Hudzik: Strict convexity of Musielak-Orlicz spaces with Luxemburg norm, Bull. Acad. Pol. Sci., Sér. Sci. Math 29 (1981) 465–470.Google Scholar
  11. H. Hudzik: Uniform convexity of Musielak-Orlicz spaces with Luxemburg norm, Ann. Soc. Math. Pol., Ser. I, Commentat. Math. 24 (1983) 21–32.Google Scholar
  12. H. Hudzik, A. Kaminska, W. Kurc: Uniformly non-ln Musielak-Orlicz (1) spaces, Bull. Pol. Acad. Sci., Math. 35 (1987) 441–448.Google Scholar
  13. H. Hudzik, W. Kowalewski, G. Lewicki: Approximative compactness and full rotundity in Musielak-Orlicz spaces and Lorentz-Orlicz spaces, Z. Anal. Anwend. 25 (2006) 163–192.https://doi.org/10.4171/zaa/1283Google Scholar
  14. H. Hudzik, X. B. Liu, T. F. Wang: Points of monotonicity in Musielak-Orlicz function spaces endowed with the Orlicz norm, Publ. Math. Debrecen 60 (2002) 385–403.https://doi.org/10.5486/PMD.2002.2610Google Scholar
  15. H. Hudzik, B. X. Wang: Approximative compactness in Orlicz spaces, J. Approximation Theory 95 (1998) 82–89.https://doi.org/10.1006/jath.1998.3213Google Scholar
  16. H. Hudzik, M. Wisła: On extreme points of Orlicz spaces with Orlicz norm, Collect. Math. 44 (1993) 135–146.Google Scholar
  17. W. A. Kirk: A fixed point theorem for mappings which do not increase distances, Amer. Math. Mon. 72 (1965) 1004–1006.https://doi.org/10.2307/2313345Google Scholar
  18. P. Kolwicz: A note on P -convex Orlicz function spaces, Ann. Soc. Math. Pol., Ser. I, Commentat. Math. 35 (1995) 163–170.Google Scholar
  19. P. Kolwicz, R. Pluciennik: P -convexity of Orlicz-Bochner function spaces, Proc. Amer. Math. Soc. 126 (1998) 2315–2322.https://doi.org/10.1090/S0002-9939-98-04290-7Google Scholar
  20. S. Shang, Y. Cui: Locally uniform convexity in Musielak-Orlicz function spaces of Bochner type endowed with the Luxemburg norm, J. Math. Anal. Appl. 378 (2011) 432–441.https://doi.org/10.1016/j.jmaa.2011.02.008Google Scholar
  21. S. Shang, Y. Cui, Y. Fu: Extreme points and rotundity in Musielak-Orlicz-Bochner function spaces endowed with Orlicz norm, Abstr. Appl. Anal. 2010 (2010), Article ID 914183, 13 pp.https://doi.org/10.1155/2010/914183Google Scholar
  22. S. Shang, Y. Cui, Y. Fu: Midpoint locally uniform rotundity of Musielak-Orlicz-Bochner function spaces endowed with the Luxemburg norm, J. Convex Anal. 19(1) (2012) 213–223.https://doi.org/10.68381/jca19013Google Scholar
  23. S. Shang, Y. Cui, Y. Fu: P -convexity of Orlicz-Bochner function spaces endowed with the Orlicz norm, Nonlinear Anal. 75 (2012) 371–379.https://doi.org/10.1016/j.na.2011.08.040Google Scholar
  24. S. Shang, Y. Cui, H. Hudzik: Uniform Gateaux differentiability and weak uniform rotundity in Musielak-Orlicz function spaces of Bochner type equipped with the Luxemburg norm, Nonlinear Anal. 75 (2012) 3009–3020.https://doi.org/10.1016/j.na.2011.11.012Google Scholar

S. Shang, Y. Cui. “Uniform Rotundity and k-Uniform Rotundity in Musielak-Orlicz-Bochner Function Spaces and Applications.” Journal of Convex Analysis 22 (2015), No. 3, 747–768. https://doi.org/10.68381/jca22038