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math.GR2025
Almost and quasi Leinster groups
Iulia-Cătălina Pleşca, Marius Tărnăuceanu
In this paper, we study the parallelism between perfect numbers and Leinster groups and continue it by introducing the new concepts of almost and quasi Leinster groups which parall…
math.GR2024
Almost abelian numbers
Iulia Cătălina Pleşca, Marius Tărnăuceanu
In this article we introduce the concept of almost -numbers. We survey the existing results in literature for almost cyclic numbers and give characterizations for almo…