• openAccess   An Arad and Fisman’s Theorem on Products of Conjugacy Classes Revisited 

      Beltrán, Antonio; Felipe, Maria José; Melchor Borja, Carmen Springer (2022)
      A theorem of Z. Arad and E. Fisman establishes that if A and B are two non-trivial conjugacy classes of a finite group G such that either AB = A ∪ B or AB = A−1 ∪ B, then G cannot be a non-abelian simple group. We ...
    • openAccess   Some problems about products of conjugacy classes in finite groups 

      Beltrán, Antonio; Felipe, Maria José; Melchor Borja, Carmen University of Isfahan (2019-03)
      We summarize several results about non-simplicity‎, ‎solvability and normal structure of finite groups related to the number of conjugacy classes appearing in the product or the power of conjugacy classes‎. ‎We also collect ...