No hedgehog in the product?

Commentationes Mathematicae Universitatis Carolinae

Volumn 43, Issue 2, 2002, Pages 349-361

  Simon, Petr ^a   Tironi, Gino ^b  

^a CHARLES UNIVERSITY   (Czech Republic)

^b UNIVERSITY OF TRIESTE   (Italy)

Author keywords

( , ) good set; Fre chet fan; Fr chet space; 4 space

Indexed keywords

EID: 0345723956     PISSN: 00102628     EISSN: 12137243     Source Type: Journal    
DOI: None     Document Type: Article

References (11)

1. Archangel'skii A.V The frequency spectrum of a topological space and the classification of spaces, Soviet. Math. Dokl. 13 (1972), 265-268
2. Brendle J., LaBerge T Forcing tightness of products of fans, Fund. Math. 150 (1996), no. 3, 211-226
3. Erdös P., Shelah S Separability properties of almost-disjoint families of sets, Israel J. Math. 12 (1972), 207-214
4. LaBerge T., Landver A Tightness in products of fans and pseudo-fans, Topology Appl. 65 (1995), 237-255
5. Martin D.A., Solovay R.M Internal Cohen extension, Ann. Math. Logic 2 (1970), 143-178
6. Michael E A quintuple quotient quest, Gen. Topology Appl. 2 (1972), 91-138
7. Nogura T Products of hffii-spaces, Topology Appl. 21 (1985), 251-259
8. Nyikos P.J Convergence in topology, in: Recent Progress in General Topology, ed. by M. Husek and J. van Mill, North-Holland, 1992, pp. 537-570
9. Simon P A hedgehog in the product, Acta. Univ. Carolin. Math. Phys. 39 (1998), 147-153
10. Siwiec F Sequence covering and countably bi-quotient mappings, Gen. Topology Appl. 1 (1971), 143-154
11. Todorcevic S Partition problems in topology, Contemporary Mathematics, 84, Amer. Math. Soc., Providence, RI, 1989