Elementary Characterizations of Some Classes of Reducts of Affine Spaces
✍ Scribed by Joanna Gorodowienko; Małgorzata Prażmowska; Krzysztof Prażmowski
- Publisher
- Springer
- Year
- 2008
- Tongue
- English
- Weight
- 548 KB
- Volume
- 89
- Category
- Article
- ISSN
- 0047-2468
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
i c-space -I Gra i -@rage [2] has introduced two inteiesting generalizations of first countable amely W-spaces and w-spaces. l'hese spacer dre defined in terms of a n infinite game. The purpose of this note 13 to give simple and purely 1 conditions characterizing these spaces. It is foui;d that, in
A bounded linear operator A on a Banach space is called relatively regular, if there is a bounded linear operator B such that ABA = A. In this case B is called a g 1 -inverse of A. In this paper we characterize some classes of relatively regular operators A via the set {B 1 -B 2 : B 1 and B 2 are g