*-Topological properties
An ideal on a set X is a nonempty collection of subsets of X closed under the operations of subset (heredity) and finite unions (additivity). Given a topological space (X,τ) an ideal ℐ on X and A⊆X, ψ(A) is defined as ⋃{U∈τ:U−A∈ℐ}. A topology, denoted τ*, finer than τ is generated by the basis {U−I:...
Uloženo v:
| Hlavní autoři: | , |
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| Médium: | Artigo |
| Jazyk: | Inglês |
| Vydáno: |
Wiley
1990-01-01
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| Edice: | International Journal of Mathematics and Mathematical Sciences |
| Témata: | |
| On-line přístup: | http://dx.doi.org/10.1155/S0161171290000734 |
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