separable space
topological space with a dense countable subset
abstract Wiener space
separable Banach space equipped with a Hilbert subspace such that the standard cylinder set measure on the Hilbert subspace induces a Gaussian measure on the whole Banach space
H square
Hardy space with square norm
second-countable space
topological space whose topology admits a countable base
Polish space
separable, completely metrizable topological space
finite topological space
topological space with a finite number of points