On continuously semimetrizable and stratifiable spaces

Some generalizations of metric spaces

Jack Ceder · Pacific Journal of Mathematics · 1961 · 319 citations · Full text

Natural Sciences, Mathematics, Set Theory +11

A regular semi-metric space for which there is no semi-metric under which all spheres are open

Robert W. Heath · Proceedings of the American Mathematical Society · 1961 · 20 citations

Natural Sciences, Mathematics, Physics +7

A Paracompact Semi-Metric Space Which is Not an M 3 -Space

R. W. Heath · Proceedings of the American Mathematical Society · 1966 · 12 citations

Natural Sciences, Mathematics, Physics +6

A paracompact semi-metric space which is not an $M\sb{3}$-space

Robert W. Heath · Proceedings of the American Mathematical Society · 1966 · 10 citations · Full text

Natural Sciences, Mathematics, Geometry +14