Tolerance lattice of algebras with restricted similarity type Ivan Chajda (1995) Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica Similarity:
Lattices of tolerances Ivan Chajda, Bohdan Zelinka (1977) Časopis pro pěstování matematiky Similarity:
Atomary tolerances on finite algebras Bohdan Zelinka (1996) Mathematica Bohemica Similarity: A tolerance on an algebra is defined similarly to a congruence, only the requirement of transitivity is omitted. The paper studies a special type of tolerance, namely atomary tolerances. They exist on every finite algebra.