On the MacNeille Completion of the Category of Partially Ordered Topological Spaces
β Scribed by A. Schauerte
- Publisher
- John Wiley and Sons
- Year
- 1993
- Tongue
- English
- Weight
- 459 KB
- Volume
- 163
- Category
- Article
- ISSN
- 0025-584X
No coin nor oath required. For personal study only.
β¦ Synopsis
Abstract
Preordered topological spaces for which the order has a closed graph form a topological category. Within this category we identify the MacNeille completions (coinciding with the universal initial completions) of five monotopological subcategories, namely those of the T~0~(T~1~, T~2~) preordered spaces and the (completely regular) partially ordered spaces. We also show that a functor due to L. NACHBIN from the quasiβuniform spaces to the preordered spaces preserves initial sources.
π SIMILAR VOLUMES
The HAHN-BANACH-theorem is known to have fundamental importance for several fields of mathematics. This theorem is not used concerning functionals, but operators which map into a real partially ordered vector space. In this paper is shown that the validity of this theorem is equivalent t o the vali
In the hyperspace Exp X of all closed subsets of a topological space X interval and order topology solely use the c-relation in Exp X for their definitions whereas HAUSDORFB set convergence and VIETORIS topology use neighbourhoods in X itself. Nevertheless there exist intimate but non-trivial relati
its space of convolution operators, and let O O be the predual of O O X . We prove , ΰ » , ΰ » that the topology of uniform convergence on bounded subsets of H H and the strong dual toplogy coincide on O O X . Our technique, involving Mackey topologies, differs , ΰ » from, and is simpler than, those usual