Operations preserving equivalence relations

arXiv1705.10890MaRDI QIDQ6287294

Maurice Pouzet

Publication date: 30 May 2017

Abstract: In 2014, C'egielski, Grigorieff and Guessarian characterized unary self-maps on the set $mathbbZ$ of integers which preserve all congruences of the additive group. In this note, we propose a shorter and straigthforward proof. We replace this result in the frame of universal algebra.

Mathematics Subject Classification ID

Many-valued logic (03B50) Fuzzy sets and logic (in connection with information, communication, or circuits theory) (94D05)

This page was built for publication: Operations preserving equivalence relations

Report a bug (only for logged in users!)Click here to report a bug for this page (MaRDI item Q6287294)