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A rigid local system with monodromy group 2.J2


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Opened Access A rigid local system with monodromy group 2.J2

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Author: Katz, Nicholas M.
Rojas León, Antonio
Department: Universidad de Sevilla. Departamento de álgebra
Date: 2019-05
Published in: Finite Fields and Their Applications, 57, 276-286.
Document type: Article
Abstract: 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 (Galois-conjugate) irreducible representation of degree six.
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DOI: 10.1016/j.ffa.2019.02.008

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