Higman, Graham Transversals and conjugacy in the group of recursive permutations. (English) Zbl 0728.20001 Groups, Sel. Pap. Aust. Natl. Univ. Group Theory Program, 3rd Int. Conf. Theory Groups Rel. Top., Canberra/Aust. 1989, Lect. Notes Math. 1456, 142-160 (1990). Reviewer: F.Haug (Tübingen) MSC: 20B07 03D20 PDFBibTeX XML
Beigel, Richard Bi-immunity results for cheatable sets. (English) Zbl 0709.03032 Theor. Comput. Sci. 73, No. 3, 249-263 (1990). Reviewer: D.Lucanu MSC: 03D15 68Q15 68Q05 03D10 PDFBibTeX XMLCite \textit{R. Beigel}, Theor. Comput. Sci. 73, No. 3, 249--263 (1990; Zbl 0709.03032) Full Text: DOI
Ash, C. J.; Jockusch, C. G. jun.; Knight, J. F. Jumps of orderings. (English) Zbl 0705.03022 Trans. Am. Math. Soc. 319, No. 2, 573-599 (1990). Reviewer: C.Calude MSC: 03D45 03D25 PDFBibTeX XMLCite \textit{C. J. Ash} et al., Trans. Am. Math. Soc. 319, No. 2, 573--599 (1990; Zbl 0705.03022) Full Text: DOI