1. Congruence lattices of finite chains with endomorphisms Creator: Ježek, Jaroslav and Slavík, Václav Format: bez média and svazek Type: model:article and TEXT Subject: chain and congruence lattice Language: English Description: Characterization of congruence lattices of finite chains with either one or two endomorphisms is given. Rights: http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
2. On the congruence lattice of an abelian lattice ordered group Creator: Jakubík, Ján Format: bez média and svazek Type: model:article and TEXT Subject: lattice ordered group, l-ideal, congruence lattice, and disjoint subset Language: English Description: In the present note we characterize finite lattices which are isomorphic to the congruence lattice of an abelian lattice ordered group. Rights: http://creativecommons.org/publicdomain/mark/1.0/ and policy:public