16G10 4 16P40 4 tiled order 4 Gorenstein tiled order 3 quiver 3 Gorenstein matrix 2 distributive module 2 exponent matrix 2 index of semiperfect ring 2 partially ordered set 2 1 16D40 1 16E05 1 16G20 1 16H99 1 16Z05 1 admissible quiver 1 doubly stochastic matrix 1 emiperfect ring 1 exponent matrix; Gorenstein tiled order 1 finite Markov chain 1 global dimension 1 kernel of epimorphism 1 projective cover 1 projective resolution 1 semiperfect ring 1 tiled Order 1 transition matrix 1