Groups with metamodular subgroup lattice
Maria De Falco, Francesco de Giovanni, Carmela Musella, R. Schmidt · Colloquium Mathematicum · 2003
A group $G$ is called metamodular if for each subgroup $H$ of $G$ either the subgroup lattice ${{{\mathfrak L}}}(H)$ is modular or $H$ is a modular element of the lattice ${{{\mathfrak L}}}(G)$. Metamodular groups appear as the natural lattice anal