User:CaptchaSamurai/sandbox/Adam Henryk Torunczyk

Adam Henryk Toruńczyk (21 October 1945) is a Polish Mathematician specializing in topology and functional analysis. In particular he generalized Anderson–Kadec theorem by proving that Banach spaces are homeomorphic if and only if they have the same density character, the minimum cardinality of a dense subset.

References/Notes and references
Always cite your sources! No original research!