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Keywords:
topological game; network; netweight; weakly separated; $D$-space
Summary:
We introduce a two player topological game and study the relationship of the existence of winning strategies to base properties and covering properties of the underlying space. The existence of a winning strategy for one of the players is conjectured to be equivalent to the space have countable network weight. In addition, connections to the class of D-spaces and the class of hereditarily Lindelöf spaces are shown.
References:
[1] Aurichi L.: D-spaces, topological games and selection principles. Topology Proc. 36 (2010), 107–122. MR 2591778 | Zbl 1203.54024
[2] Abraham U., Shelah S.: Martin's Axiom does not imply that every two ${\aleph _1}$-dense sets of reals are isomorphic. Israel J. Math. 38 (1981), 161–176. DOI 10.1007/BF02761858 | MR 0599485
[3] Ciesielski K.: On the netweight of subspaces. Fund. Math. 117 (1983), no. 1, 37–46. MR 0712211 | Zbl 0533.54003
[4] van Douwen E.K., Pfeffer W.F.: Some properties of the Sorgenfrey line and related spaces. Pacific J. Math. 81 (1979), no. 2, 371–377. DOI 10.2140/pjm.1979.81.371 | MR 0547605 | Zbl 0409.54011
[5] Gruenhage G.: Cosmicity of cometrizable spaces. Trans. Amer. Math. Soc. 313 (1989), 301–315. DOI 10.1090/S0002-9947-1989-0992600-5 | MR 0992600 | Zbl 0667.54012
[6] Gruenhage G.: A survey of D-spaces. Contemporary Mathematics 533 (2011), 13–28. DOI 10.1090/conm/533/10502 | MR 2777743 | Zbl 1217.54025
[7] Gruenhage G., Moore J.: Perfect compacta and basis problems in topology. in Open Problems in Topology II, Elsevier, Amsterdam, 2007, pp. 151–159.
[8] Soukup D., Szeptycki P.J.: A counterexample in the theory of D-spaces. preprint.
[9] Tkachenko M.G.: Chains and cardinals. Dokl. Akad. Nauk SSSR 239 (1978), no. 3, 546–549; English translation: Soviet Math. Dokl. 19 (1978), 382–385. MR 0500798 | Zbl 0404.54002
[10] Todorcevic S.: Partition Problems in Topology. Contemporary Mathematics, 84, American Mathematical Society, Providence, Rhode Island, 1989. DOI 10.1090/conm/084 | MR 0980949 | Zbl 0659.54001
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