Dear colleagues,
Let R be the ring of integers modulo p^n, p a prime.
Let S be the ideal of the polynomial ring R[X], generated by X^{p+1} and X^p+pX.
Is it possible to do the following calculation in GAP :
1. Compute the invariants of the additive group of the ring T= XR[X]/S.
2. Compute the series of ideals T^2, T^3,..., T^p.
3. Compute the invariants of the adjoint group of T.
Thanks in advance.
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