Baire's space of permutations of $N$ and rearrangements of series
Tibor Šalát
Abstract
In the first part of the paper we investigate the structure of the
space $(S,d)$ of all sequences of positive integers with Baire's metric.
In the second part we study properties of the space $(E,d)$ of all
permutations of $N$ in connection with rearrangements of non-absolutely
convergent series.
Keywords: Rearrangements of series, Baire'sspace, set of first category,
residual set, $\sigma$-porosity, strong porosity.