Abstract
A subgroup H of a finite group G is a partial CAP-subgroup of G if there is a chief series of G such that H either covers or avoids every chief factor of the series. The structural impact of the partial cover and avoidance property of some distinguished subgroups of a group has been studied by many authors. However, there are still some open questions which deserve an answer. The purpose of the present paper is to give a complete answer to one of these questions.
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Ballester-Bolinches, A., Esteban-Romero, R. & Li, Y. A question on partial CAP-subgroups of finite groups. Sci. China Math. 55, 961–966 (2012). https://doi.org/10.1007/s11425-011-4356-9
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DOI: https://doi.org/10.1007/s11425-011-4356-9