Author: Cichoń, Jacek

Cichoń, Jacek; Jasiński, Andrzej: A note on complex unions of subsets of the real line. (English). Acta Universitatis Carolinae. Mathematica et Physica, vol. 42 (2001), issue 2, pp. 11-15
Cichoń, Jacek; Szczepaniak, Przemyslaw: On almost invariant subsets of the real line. (English). Acta Universitatis Carolinae. Mathematica et Physica, vol. 42 (2001), issue 2, pp. 17-21
Cichoń, Jacek: On dense subsets of rational numbers. (English). Acta Universitatis Carolinae. Mathematica et Physica, vol. 42 (2001), issue 2, pp. 5-10
Cichoń, Jacek; Żeberski, Szymon: On the splitting number and Mazurkiewicz's theorem. (English). Acta Universitatis Carolinae. Mathematica et Physica, vol. 42 (2001), issue 2, pp. 23-25

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