کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4658645 | 1633108 | 2014 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Eberlein theorem and norm continuity of pointwise continuous mappings into function spaces
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
ریاضیات
هندسه و توپولوژی
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چکیده انگلیسی
For a pseudocompact (strongly pseudocompact) space T we show that every strongly bounded (bounded) subset A of the space C(T) of all continuous functions on T has compact closure with respect to the pointwise convergence topology. This generalization of the Eberlein-Grothendieck theorem allows us to prove that, for any strongly pseudocompact spaces T, there exist many points of norm continuity for any pointwise continuous, C(T)-valued mapping h, defined on a Baire space X, which is homeomorphic to a dense Borel subset of a pseudocompact space. In particular, this is so, if X is pseudocompact. In the case when T is pseudocompact the same “norm-continuity phenomenon” has place for every strongly pseudocompact space X or, for every Baire space X which is homeomorphic to a Borel subset of some countably compact space.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Topology and its Applications - Volume 169, 1 June 2014, Pages 108-119
Journal: Topology and its Applications - Volume 169, 1 June 2014, Pages 108-119
نویسندگان
Mitrofan M. Choban, Petar S. Kenderov, Warren B. Moors,