A.V. Arhangel'skii
A generic theorem in the theory of cardinal invariants of topological spaces

Comment.Math.Univ.Carolinae 36,2 (1995) 305-327.

Abstract:Relative versions of many important theorems on cardinal invariants of topological spaces are formulated and proved on the basis of a general technical result, which provides an algorithm for such proofs. New relative cardinal invariants are defined, and open problems are discussed.

Keywords: Lindel\"of space, Souslin number, spread, extent, pseudocharacter, relative cardinal invariant
AMS Subject Classification: Primary 54A25; Secondary 54D20

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