Projective modules for the subalgebra of degree 0 in a finite-dimensional hyperalgebra of type A1
Abstract
We describe the structure of projective indecomposable modules for the subalgebra consisting of the elements of degree 0 in the hyperalgebra of the r-th Frobenius kernel for the algebraic group SL2(k), using the primitive idempotents which were constructed before by the author.
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