The notion of a good quotient relation has been introduced as an attempt to generalize the notion of a quotient algebra to relations on an algebra which are not necessarily congruence relations. In… (More)

In general, power structure of a structure A (with universe A) is an appropriate structure defined on the power set P(A). There are lot of papers concerning this topic in which power structures… (More)

In this paper we investigate a property of the algebras of complexes (or power algebras or globals) which is a natural generalization of the notion of having all subgroups to be quasinormal in group… (More)