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Finite Groups with a Prescribed Number of Cyclic Subgroups II

Group Theory 2018-10-22 v1

Abstract

T\u{a}rn\u{a}uceanu described the finite groups GG having exactly G1|G|-1 cyclic subgroups. In "Finite Groups with a Prescribed Number of Cyclic Subgroups,", we used elementary methods to completely characterize those finite groups GG having exactly GΔ|G|-\Delta cyclic subgroups for Δ=2,3,4\Delta=2, 3, 4 and 55. In this paper, we prove that for any Δ>0\Delta >0 if GG has exactly GΔ|G|-\Delta cyclic subgroups, then G8Δ|G|\le 8\Delta and therefore the number of such GG is finite. We then use the computer program GAP to find all GG with exactly GΔ|G|-\Delta cyclic subgroups for Δ=1,,32\Delta=1,\ldots,32.

Keywords

Cite

@article{arxiv.1810.08328,
  title  = {Finite Groups with a Prescribed Number of Cyclic Subgroups II},
  author = {Richard Belshoff and Joe Dillstrom and Les Reid},
  journal= {arXiv preprint arXiv:1810.08328},
  year   = {2018}
}

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17 pages