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Notes on the ideal ${\mathit{(a)}}$

In: Tatra Mountains Mathematical Publications, vol. 46, no. 2
Andrzej Nowik
Detaily:
Rok, strany: 2010, 41 - 45
Kľúčové slová:
density topology, nowhere dense sets, meager sets, ideal of sets, porous sets.
O článku:
For any topologies $\tau_1 \subseteq \tau_2$, we consider the ideal of sets $A$ such that for each nonempty $U \in \tau_2$ there exists $W \in \tau_1$ such that $U \cap W \not= \emptyset$ and $A \cap U \cap W = \emptyset$. For $\tau_1$, the standard Euclidean topology, and for $\tau_2$, the density topology, we obtain the ideal ${\mathit{(a)}}$ investigated by Z. Grande and E. Strońska.
Ako citovať:
ISO 690:
Nowik, A. 2010. Notes on the ideal ${\mathit{(a)}}$. In Tatra Mountains Mathematical Publications, vol. 46, no.2, pp. 41-45. 1210-3195.

APA:
Nowik, A. (2010). Notes on the ideal ${\mathit{(a)}}$. Tatra Mountains Mathematical Publications, 46(2), 41-45. 1210-3195.