Isotopic algebras with non-isomorphic congruence lattices
arXiv:1301.7481 · doi:10.1007/s00012-014-0301-4
Abstract
We give examples of pairs of isotopic algebras with non-isomorphic congruence lattices. This answers the question of whether all isotopic algebras have isomorphic congruence lattices.
arXiv comment3 pages; comments welcome