International Journal of Mathematics and Mathematical Sciences
Volume 19 (1996), Issue 4, Pages 637-642
doi:10.1155/S0161171296000907
Non-archimedean Eberlein-Šmulian theory
T. Kiyosawa1
and W.H. Schikhof2
1Faculty of Education, Shizuoka University, Ohya, Shizuoka 422, Japan
2Department of Mathematics, University of Nijmegen, Toernooiveld, Nijmegen 6525 ED, The Netherlands
Abstract
It is shown that, for a large class of non-archimedean normed spaces E, a subset X is weakly compact as soon as f(X) is compact for all f∈E′ (Theorem 2.1), a fact that has no analogue in Functional Analysis over the real or complex numbers. As a Corollary we derive a non-archimedean version of the Eberlein-Šmulian Theorem (2.2 and 2.3, for the ‘classical’ theorem, see [1], VIII, §2 Theorem and Corollary, page 219).