Adjoint invariants of second Frobenius kernels of GL(2)

Abstract

In this article, we apply general results about adjoint invariants of Frobenius kernels for the general linear group GL(m) established by Marko (Adjoint invariants of Frobenius kernels of GL(m) and elements of the center of . Commun. Algebra, 2019;47(12):5317–5337), and explicitly describe generators of adjoint invariants of second Frobenius kernels of G = GL(2) over a field K of a positive characteristic.