Ovchinnikov, P. G. Galois correspondence related to extension of charges on \(\sigma\)-class of subset of a finite set. (English. Russian original) Zbl 0840.03049 Russ. Math. 38, No. 5, 34-38 (1994); translation from Izv. Vyssh. Uchebn. Zaved., Mat. 1994, No. 5(384), 36-40 (1994). Reviewer: J.Tkadlec (Praha) MSC: 03G12 06A15 28A10 81P10 PDF BibTeX XML Cite \textit{P. G. Ovchinnikov}, Russ. Math. 38, No. 5, 1 (1994; Zbl 0840.03049); translation from Izv. Vyssh. Uchebn. Zaved., Mat. 1994, No. 5(384), 36--40 (1994) OpenURL
Vojtáš, Peter Generalized Galois-Tukey-connections between explicit relations on classical objects of real analysis. (English) Zbl 0829.03027 Judah, Haim (ed.), Set theory of the reals. Proceedings of a winter institute on set theory of the reals held at Bar-Ilan University, Ramat- Gan (Israel), January 1991. Providence, RI: American Mathematical Society (Distrib.), Isr. Math. Conf. Proc. 6, 619-643 (1993). MSC: 03E20 03E75 54A25 03E05 40A05 06A15 26A21 28A05 PDF BibTeX XML Cite \textit{P. Vojtáš}, Isr. Math. Conf. Proc. 6, 619--643 (1993; Zbl 0829.03027) OpenURL