Tolerance distributive and tolerance modular varieties of commutative semigroups
Tolerance lattice of algebras with restricted similarity type
Tolerance modular varieties of semigroups
Tolerance numbers, congruence -permutability and BCK-algebras
Tolerance relations on eventually regular semigroups.
Tolerances and congruences on implication algebras
Tolerances and congruences on lattices
Tolerances and convexity
Tolerances and orderings on semilattices
Tolerances and the Chinese remainder theorem
Tolerances, covering systems, and the axiom of choice
Tolerances in congruence permutable algebras
Tolerances of frames
Tolerances of polyunary algebras
Tolerances on graph algebras
Tolerances on median algebras
Tolerances on monounary algebras
Tolerances on poset algebras
To everz partiallz ordered set a certain groupoid is assigned. A tolerance on it is defined similarlz as a congruence, onlz the requirement of transitivitz is omitted. Some theorems concerning these tolerances are proved.
Tolerances on powers of a finite algebra
It is shown that any power , of a finite -element algebra , has factorable tolerances whenever the power has the same property.
Tolerances on -lattices