Ordinal invariants for topological spaces.

Spaces in which sequences suffice

Stanley P. Franklin · Fundamenta Mathematicae · 1965 · 396 citations · Full text

Sequences Suffice, Set-theoretic Topology, Topological Property +2

On sequential convergence

R. M. Dudley · Transactions of the American Mathematical Society · 1964 · 96 citations

Sequential Learning, Sequential Decision Making, Functional Analysis +2

SPACES WITH WEAK TOPOLOGY

Daniel E. Cohen · The Quarterly Journal of Mathematics · 1954 · 57 citations

Quarterly Journal, Topological Dynamic, January 1954 +5

Note on Convergence in Topology

Richard Arens · Mathematics Magazine · 1950 · 56 citations

Open Set, Same Topic, Topology (Electrical Engineering) +6