We prove that the universal covering of an alternating group Alt(n), which is Hurwitz, is still Hurwitz, with 31 exceptions, 30 of which are deterctable by the genus formula.
Tamburini Bellani, M. C., Pellegrini, M. A., Hurwitz generation of the universal covering of Alt(n), <<JOURNAL OF GROUP THEORY>>, 2010; 13 (5): 649-657. [doi:10.1515/JGT.2010.015] [http://hdl.handle.net/10807/1626]
Hurwitz generation of the universal covering of Alt(n)
Tamburini Bellani, Maria Clara;Pellegrini, Marco Antonio
2010
Abstract
We prove that the universal covering of an alternating group Alt(n), which is Hurwitz, is still Hurwitz, with 31 exceptions, 30 of which are deterctable by the genus formula.
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