The study of computable structures and equivalence relations lies at the intersection of computability theory, algebra and logic, and provides essential insights into the classification and decision ...

In this paper we prove that a map induced from a shape fibration is a shape fibration. We define a fiber shape equivalence relation between shape fibrations. Also, generalizing the homotopy relation, ...

This is a preview. Log in through your library . Abstract The study concerning the classification of the fuzzy subgroups of finite groups is a significant aspect of fuzzy group theory. In early papers ...