1. Monounary algebras with two direct limits Creator: Halušková, Emília Format: bez média and svazek Type: model:article and TEXT Subject: monounary algebra, direct limit, endomorphism, and retract Language: English Description: In this paper we describe all algebras A with one unary operation such that by a direct limit construction exactly two nonisomorphic algebras can be obtained from A. Rights: http://creativecommons.org/publicdomain/mark/1.0/ and policy:public