On Direct Limit Closed Classes of Algebras
Axiomatic classes of algebras of a given type which are closed with respect to direct limits are studied in this paper.
Direct limits of monounary algebras
Two element direct limit classes of monounary algebras
On direct limit classes of algebras
Some monounary algebras with EKP
An algebra is said to have the endomorphism kernel property (EKP) if every congruence on is the kernel of some endomorphism of . Three classes of monounary algebras are dealt with. For these classes, all monounary algebras with EKP are described.
Strong endomorphism kernel property for monounary algebras
All monounary algebras which have strong endomorphism kernel property are described.
Monounary algebras with two direct limits
In this paper we describe all algebras with one unary operation such that by a direct limit construction exactly two nonisomorphic algebras can be obtained from .
Partial monounary algebras with common quasi-endomorphisms
Partial monounary algebras with common closed quasi-endomorphisms
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