Bezout ring 4 elementary divisor ring neat ring 3 13F99 2 Hermite ring 2 clean ring 2 neat range one 2 stable range one 2 1 06F20 1 13F15 1 19B10 1 clear ring 1 finite stable range 1 minimal prime spectrum 1 pseudo-irreducible elemen 1 regular ring 1 ring with elementary reduction of matrices 1 semihereditary ring 1 stable range 1 1 stable range two 1