BCF-groups with elevated rank distribution Article Swipe

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Rank (graph theory) Distribution (mathematics) Mathematics Chemistry Statistics Combinatorics Mathematical analysis

Daniel C. Mayer ·

YOU? · · 2021 · Open Access · · DOI: https://doi.org/10.48550/arxiv.2110.03558 · OA: W3201791333

Infinitely many large Schur sigma-groups G with logarithmic order lo(G)=19+e, non-elementary bicyclic commutator quotient G/G' ~ C(3^e) x C(3), e >= 2, elevated rank distribution rho(G)=(3,3,3;3), punctured transfer kernel type kappa(G) ~ (144;4) and soluble length sl(G)=3 are constructed. Up to e <= 4, they are realized as 3-class field tower groups Gal(F(3,infty,K)/K) of imaginary quadratic number fields K=Q(d^1/2), d<0. Their metabelianizations M=G/G'' are BCF-groups with lo(M)=8+e and bicyclic third lower central factor gamma3(M)/gamma4(M) ~ C(3) x C(3).