We investigate game-theoretic properties of selection principles related to weaker forms of the Menger and Rothberger properties. For appropriate spaces some of these selection principles are characterized in terms of a corresponding game. We use generic extensions by Cohen reals to illustrate the necessity of some of the hypotheses in our theorems. © 2012 Elsevier B.V.
Weak covering properties and infinite games / Babinkostova, L.; Pansera, B. A.; Scheepers, M.. - In: TOPOLOGY AND ITS APPLICATIONS. - ISSN 0166-8641. - 159:17(2012), pp. 3644-3657. [10.1016/j.topol.2012.09.009]
Weak covering properties and infinite games
Pansera B. A.;
2012-01-01
Abstract
We investigate game-theoretic properties of selection principles related to weaker forms of the Menger and Rothberger properties. For appropriate spaces some of these selection principles are characterized in terms of a corresponding game. We use generic extensions by Cohen reals to illustrate the necessity of some of the hypotheses in our theorems. © 2012 Elsevier B.V.File in questo prodotto:
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