Abstract
In this paper, we determine new characterizations of nested and nested GVZ-groups, including character-free characterizations, but we additionally show that nested groups and nested GVZ-groups can be defined in terms of the existence of certain normal series.
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Communicated by John S. Wilson.
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Burkett, S.T., Lewis, M.L. Groups where the centers of the irreducible characters form a chain II. Monatsh Math 192, 783–812 (2020). https://doi.org/10.1007/s00605-019-01362-x
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DOI: https://doi.org/10.1007/s00605-019-01362-x