Abstract
For ⋀ a finite dimensional local algebra with radical N where Nn
= 0 ≠ N
n-1 define (as a right A-module), then A(⋀) is quasi-hereditary and it has a unique heredity ideal J
1(A).Assume ⋀ satisfies the right socle condition (the socle series and the radical series of ⋀⋀ coincide). We show that then the algebra Ai/J1
(Ai-1
) is isomorphic to A
i-1 where Ai
= A (⋀/Ni
). for 1 ≤ i ≤ n. Moreover we determine the canonical module for A(⋀) and we show that the Ringel dual of A(⋀) is isomorphic to the endomorphism ring of
as a left module, provided that ⋀ also satisfies the left socle condition.