Additivity properties of topological diagonalizations
arXiv:math/0112262 · doi:10.2178/jsl/1067620185
Abstract
We answer a question of Just, Miller, Scheepers and Szeptycki whether certain diagonalization properties for sequences of open covers are provably closed under taking finite or countable unions. This is a very concise paper. For a self-contained, complete, and extended treatment of the topic see math.GN/0604451
All pointers to the current e-print for a complete version should be redirected to math.GN/0604451