Now showing items 1-1 of 1

    • Icon

      A rigid local system with monodromy group 2.J2  [Article]

      Katz, Nicholas M.; Rojas León, Antonio (Elsevier, 2019-05)
      We exhibit a rigid local system of rank six on the affine line in characteristic p = 5 whose arithmetic and geometric monodromy groups are the finite group 2.J2 (J2 the Hall-Janko sporadic group) in one of its two ...