droff

Twentieth-century mathematics has produced a one-point “compactification” (P. Alexan - droff, “Über die Metrisation ...”), which has spread into all of general topology, and a theory of prime - ends (C. Carathéodory, “Über die Begrenzung ...”), which in one form or another is of consequence in con - formal mapping, potential theory, probability theory, and even group theory.

INFINITY SALOMON BOCHNER 1968