Generic continuity of minimal set-valued mappings

Journal of the Australian Mathematical Society

W. B. Moors¹ 

[1] J. R. Giles

关键词: primary 46B22;    secondary 46B20;    58C20;   

DOI  :  10.1017/S1446788700000677

学科分类：数学（综合）

来源: Cambridge University Press

【 摘 要 】

We study classes of Banach spaces where every set-valued mapping from a complete metric space into subsets of the Banach space which satisfies certain minimal properties, is single-valued and norm upper semi-continuous at the points of a dense Gδ subset of its domain. Characterisations of these classes are developed and permanence properties are established. Sufficiency conditions for membership of these classes are defined in terms of fragmentability and σ-fragmentability of the weak topology. A characterisation of non membership is used to show that l∞ (N) is not a member of our classe of generic continuity spaces.

【 授权许可】

Unknown