Quotient and bi-quotient spaces of $M$-spaces

Spaces in which sequences suffice

Stanley P. Franklin · Fundamenta Mathematicae · 1965 · 397 citations · Full text

Natural Sciences, Mathematics, Discrete Mathematics +5

Products of normal spaces with metric spaces

Kiiti Morita · Mathematische Annalen · 1964 · 238 citations

Natural Sciences, Manufacturing Engineering, Topology +8

A note on closed maps and compact sets

E. Michael · Israel Journal of Mathematics · 1964 · 156 citations

Natural Sciences, Mathematics, Set Theory +10

On open mappings, II

Sitiro Hanai · Proceedings of the Japan Academy Series A Mathematical Sciences · 1961 · 31 citations · Full text

Natural Sciences, Mathematics, Continuous Improvement +10