Published online by Cambridge University Press: 20 November 2018
The notions of monotone bases and bases of subspaces are well known in a normed linear space setting and have obvious extensions to pseudo-metrizable linear topological spaces. In this paper, these notions are extended to arbitrary linear topological spaces. The principal result gives a list of properties that are equivalent to a sequence (Mi) of complete subspaces being an e-Schauder basis of subspaces for the closed linear span of . A corollary of this theorem is the fact that an e-Schauder basis for a dense subspace of a linear topological space is an e-Schauder basis for the whole space.
Some of the results of this paper appear in a dissertation submitted to the Florida State University in partial fulfilment of the degree of Doctor of Philosophy.
This research was supported in part by National Science Foundation Grant GP-2179.