caa a22 4500 386372004 CHVBK 20180307112001.0 cr unu---uuuuu 161130e198901 xx s 000 0 eng 10.1017/S0017089500007552 doi S0017089500007552 pii (NATIONALLICENCE)cambridge-10.1017/S0017089500007552 Stothers W. W. Department of Mathematics, University of Glasgow, Glasgow G12 8QW On formulae of Macbeath and Hussein [Elektronische Daten] [W. W. Stothers] In his thesis [1], Hussein considered regular permutations of order 2 and 3 in Sn whose product is an n-cycle. For such a pair, we must have for some g ≥ 1. Such a permutation pair corresponds to a free cycloidal subgroup of the classical modular group (see, e.g., [3]). Previously the free subgroups and the cycloidal subgroups of fixed genus had been enumerated ([4], [5]). Copyright © Glasgow Mathematical Journal Trust 1989 Glasgow Mathematical Journal Cambridge University Press 31/1(1989-01), 65-70 0017-0895 31:1<65 1989 31 GMJ https://doi.org/10.1017/S0017089500007552 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S0017089500007552 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Stothers W. W. Department of Mathematics, University of Glasgow, Glasgow G12 8QW NATIONALLICENCE 773 0- Glasgow Mathematical Journal Cambridge University Press 31/1(1989-01), 65-70 0017-0895 31:1<65 1989 31 GMJ CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge