(2,m,n)-groups with Euler characteristic equal to -2^as^b

Nick Gill

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We study those $(2,m,n)$-groups which are almost simple and for which the absolute value of the Euler characteristic is a product of two prime powers. All such groups which are not isomorphic to $PSL_2(q)$ or $PGL_2(q)$ are completely classified.
Original languageEnglish
Article numberR8
JournalThe Electronic Journal of Combinatorics
Issue number3
Publication statusPublished - 2013


  • math.GR
  • math.CO
  • 20F05 (primary), 20D05, 05C10


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