An \(\alpha_4\), not Fréchet product of \(\alpha_4\) Fréchet spaces

DOI10.1016/S0166-8641(00)90096-8zbMath0959.54006OpenAlexW2083678959MaRDI QIDQ1587987

Camillo Costantini, Petr Simon

Publication date: 5 February 2001

Published in: Topology and its Applications (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1016/s0166-8641(00)90096-8

zbMATH Keywords

\(\langle\alpha_4\rangle\)-spacefunctionally separable almost disjoint family

Mathematics Subject Classification ID

Hyperspaces in general topology (54B20) Sequential spaces (54D55) Product spaces in general topology (54B10) Convergence in general topology (sequences, filters, limits, convergence spaces, nets, etc.) (54A20) Counterexamples in general topology (54G20) Special constructions of topological spaces (spaces of ultrafilters, etc.) (54D80)

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