𝔖 Bobbio Scriptorium
✦   LIBER   ✦

A first introduction to the notion of topological space

✍ Scribed by G. Papy

Publisher
Springer
Year
1971
Tongue
English
Weight
650 KB
Volume
4
Category
Article
ISSN
0013-1954

No coin nor oath required. For personal study only.

πŸ“œ SIMILAR VOLUMES

A notion of selective ultrafilter corres
A notion of selective ultrafilter corresponding to topological Ramsey spaces
✍ JosΓ© G. Mijares πŸ“‚ Article πŸ“… 2007 πŸ› John Wiley and Sons 🌐 English βš– 240 KB

## Abstract We introduce the relation of __almost‐reduction__ in an arbitrary topological Ramsey space β„› as a generalization of the relation of almost‐inclusion on β„•^[∞]^. This leads us to a type of ultrafilter 𝒰 βŠ† β„› which corresponds to the well‐known notion of __selective ultrafilter__ on β„•. The

An Extension of the Notion of Orthogonal
An Extension of the Notion of Orthogonality to Banach Spaces
✍ Fathi B. Saidi πŸ“‚ Article πŸ“… 2002 πŸ› Elsevier Science 🌐 English βš– 152 KB

We extend the usual notion of orthogonality to Banach spaces. We show that the extension is quite rich in structure by establishing some of its main properties and consequences. Geometric characterizations and comparison results with other extensions are established. Also, we establish a characteriz