
In this paper we give an alternative proof, without reference to Urysohn’s lemma, of the metrization theorem of Bing [2], Nagata [6], and Smirnov [8] via the theory of symmetric spaces as developed by H. Martin in [5].
Lower separation axioms (\(T_0\)--\(T_3\), etc.), Noncompact covering properties (paracompact, Lindelöf, etc.), Metric spaces, metrizability, Semimetric spaces
Lower separation axioms (\(T_0\)--\(T_3\), etc.), Noncompact covering properties (paracompact, Lindelöf, etc.), Metric spaces, metrizability, Semimetric spaces
| selected citations These citations are derived from selected sources. This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | 6 | |
| popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network. | Average | |
| influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Average | |
| impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Average |
