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This article describes a practical approach for determining the lattice of subgroups between given subgroups and , provided the total number of such subgroups is not too large. It builds on existing functionality for element conjugacy, double cosets and maximal subgroups.
Cite this article
Alexander Hulpke, Finding intermediate subgroups. Port. Math. 74 (2017), no. 3, pp. 201–212DOI 10.4171/PM/2002