Abstract:
Let $K$ be a local ring of the main ideal with a nilpotent maximal ideal $J$. The paper is devoted to finished of solution of problem enumeration of ideals of the ring $K$ of $n\times n$ matrices with coefficients of $J$ on the main diagonal and above it.
Keywords:combinatorial identities, method of coefficients, enumeration of lattice, ring theory.
UDC:
519.44+519.1
Received: 18.12.2010 Received in revised form: 25.02.2011 Accepted: 10.03.2011