arXiv math/01122622001-12math.LOmath.COmath.GN

Additivity properties of topological diagonalizations

Tomek Bartoszynski, Saharon Shelah, Boaz Tsaban

备注：: All pointers to the current e-print for a complete version should be redirected to math.GN/0604451
发表信息：: Journal of Symbolic Logic 68 (2003), 1254--1260
DOI：: 10.2178/jsl/1067620185

英文摘要：

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

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