数学

Luxemburg范数下Orlicz-Bochner函数空间的I-凸性与Q-凸性

  • 董小莉 ,
  • 巩万中
展开
  • 安徽师范大学 数学与统计学院, 安徽 芜湖 241000

收稿日期: 2018-11-13

  网络出版日期: 2020-01-13

基金资助

国家自然科学基金(11771273)

I-convexity and Q-convexity of Orlicz-Bochner function spaces with the Luxemburg norm

  • DONG Xiaoli ,
  • GONG Wanzhong
Expand
  • School of Mathematics and Statistics, Anhui Normal University, Wuhu Anhui 241000, China

Received date: 2018-11-13

  Online published: 2020-01-13

摘要

根据Banach空间中I-凸与Q-凸的等价定义得到了当(Ω,Σ,μ)为有限测度空间时,Luxemburg范数下Orlicz-Bochner函数空间LMμ,X)为I-凸的当且仅当M ∈ △2(∞)∩ ▽2(∞),且X为I-凸的;LMμ,X)为Q-凸的当且仅当M ∈ △2(∞)∩ ▽2(∞),且X为Q-凸的.

本文引用格式

董小莉 , 巩万中 . Luxemburg范数下Orlicz-Bochner函数空间的I-凸性与Q-凸性[J]. 华东师范大学学报(自然科学版), 2020 , 2020(1) : 40 -50 . DOI: 10.3969/j.issn.1000-5641.201811042

Abstract

There are some equivalent definitions for I-convexity and Q-convexity. In this context, if (Ω, Σ, μ) is a finite measure space, the Orlicz-Bochner function space L(M)(μ, X) endowed with the Luxemburg norm is I-convex if and only if M ∈ △2(∞) ∩ ▽2(∞) and X is I-convex; similarly, L(M)(μ, X) is Q-convex if and only if M ∈ △2(∞) ∩ ▽2(∞) and X is Q-convex.

参考文献

[1] BECK A. A convexity condition in Banach spaces and the strong law of large numbers[J]. Proceedings of the American Mathematical Society, 1962, 13:329-334. DOI:10.1090/S0002-9939-1962-0133857-9.
[2] JAMES R C. Uniformly nonsquare Banach spaces[J]. Annals of Mathematics, 1964, 80:542-550. DOI:10.2307/1970663.
[3] HUANG S, NEERVEN J. B-Convexity, the analytic Radon-Nikodym property, and individual stability of C0-semigroups[J]. Journal of Mathematical Analysis and Applications, 1999, 231:1-20. DOI:10.1006/jmaa.1998.6211.
[4] GARCIA-FALSET J, LLORENS-FUSTER E, MAZCUNAN-NAVARRO E. Uniformly nonsquare Banach spaces have the fixed point property for nonexpansive mappings[J]. Journal of Functional Analysis, 2006, 233:494-514. DOI:10.1016/j.jfa.2005.09.002.
[5] KOTTMAN C A. Packing and reflexivity in Banach spaces[J]. Transactions of the American Mathematical Society, 1970, 150:565-576. DOI:10.1090/S0002-9947-1970-0265918-7.
[6] SAEJUNG S. Convexity conditions and normal structure of Banach spaces[J]. Journal of Mathematical Analysis and Applications, 2008, 344:851-856. DOI:10.1016/j.jmaa.2008.03.036.
[7] AMIR D, FRANCHETTI C. The radius ratio convexity properties in normed linear spaces[J]. Transactions of the American Mathematical Society, 1984, 282:275-291. DOI:10.1090/S0002-9947-1984-0728713-8.
[8] KAMINSKA A, TURETT B. Uniformly non-ln(1) Orlicz-Bochner space[J]. Bulletin of the Polish Academy of Sciences (Mathematics), 1987, 35(3/4):211-218.
[9] KOLWICZ P, PLUCIENNIK R. P-convexity of Orlicz-Bochner spaces[J]. Proceedings of the American Mathematical Society, 1998(8):2315-2322.
[10] NAIDU S V R, SASTRY K P. Convexity conditions in normed linear spaces[J]. Journal für die Reine und Angewandte Mathematik, 1978, 297:35-53.
[11] CHEN S T. Geometry of Orlicz Spaces[M]. Warszawa:Dissertationes Mathematicae Warszawa, 1996.
[12] HUDZIK H. Some class of uniformly non-square Orlicz-Bochner spaces[J]. Commentationes Mathematicae Universitatis Carolinae, 1985, 26:269-274.
[13] SHANG S Q, CUI Y A. Uniform nonsquareness and locally uniform nonsquareness in Orlicz-Bochner function spaces and applications[J]. Journal of Functional Analysis, 2014, 267:2056-2076. DOI:10.1016/j.jfa.2014.07.032.
[14] SHI Z R, WANG Y. Uniformly non-square points and representation of functionals of Orlicz-Bochner sequence spaces[J]. The Rocky Mountain Journal of Mathematics, 2018, 48:639-660. DOI:10.1216/RMJ-2018-48-2-639.
[15] NATHANSKY H F, FUSTER E L C. Comparison of P-convexity, O-convexity and other geometrical properties[J]. Journal of Mathematical Analysis and Applications, 2012, 396(2):749-758. DOI:10.1016/j.jmaa.2012.07.021.
[16] ALHERK G, HUDZIK H. Uniformly non-ln(1) Musielak-Orlicz space of Bochner type[J]. Forum Mathematicum, 1989(4):403-410.
文章导航

/