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MATHEMATICA BOHEMICA, Vol. 125, No. 4, pp. 485-495 (2000)
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# Monounary algebras with two direct limits

## Emilia Haluskova

* Emilia Haluskova*, Mathematical Institute, Slovak Academy of Sciences, Gresakova 6, 040 01 Kosice, Slovakia, e-mail: ` ehaluska@mail.saske.sk`

**Abstract:**
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 $A$.

**Keywords:** monounary algebra, direct limit, endomorphism, retract

**Classification (MSC2000):** 08A60

**Full text of the article:**

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