# Homomorphisms of unary algebras and of their expansions

W. Lampe; J. Sichler; V. Trnková

Colloquium Mathematicae (1993)

- Volume: 64, Issue: 1, page 79-92
- ISSN: 0010-1354

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topLampe, W., Sichler, J., and Trnková, V.. "Homomorphisms of unary algebras and of their expansions." Colloquium Mathematicae 64.1 (1993): 79-92. <http://eudml.org/doc/210176>.

@article{Lampe1993,

author = {Lampe, W., Sichler, J., Trnková, V.},

journal = {Colloquium Mathematicae},

keywords = {simultaneous representation; algebra; reduct; representation of pairs of monoids; reduct of an algebra; expansion; endomorphism monoid},

language = {eng},

number = {1},

pages = {79-92},

title = {Homomorphisms of unary algebras and of their expansions},

url = {http://eudml.org/doc/210176},

volume = {64},

year = {1993},

}

TY - JOUR

AU - Lampe, W.

AU - Sichler, J.

AU - Trnková, V.

TI - Homomorphisms of unary algebras and of their expansions

JO - Colloquium Mathematicae

PY - 1993

VL - 64

IS - 1

SP - 79

EP - 92

LA - eng

KW - simultaneous representation; algebra; reduct; representation of pairs of monoids; reduct of an algebra; expansion; endomorphism monoid

UR - http://eudml.org/doc/210176

ER -

## References

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- [2] Z. Hedrlín and A. Pultr, On full embeddings of categories of algebras, Illinois J. Math. 10 (1966), 392-406.
- [3] B. Jónsson and E. Nelson, Relatively free products in regular varieties, Algebra Universalis 4 (1974), 14-19. Zbl0319.08002
- [4] M. Petrich, J. Sichler and V. Trnková, Simultaneous representations in categories of algebras, ibid. 27 (1990), 426-453. Zbl0733.18002
- [5] J. Płonka, On the sum of a direct system of universal algebras with nullary polynomials, ibid. 19 (1984), 197-207. Zbl0548.08001
- [6] A. Pultr and V. Trnková, Combinatorial, Algebraic and Topological Representations of Groups, Semigroups and Categories, North-Holland, Amsterdam 1980.
- [7] J. Sichler, Testing categories and strong universality, Canad. J. Math. 25 (1973), 370-385. Zbl0265.18006
- [8] P. Vopěnka, A. Pultr and Z. Hedrlín, A rigid relation exists on any set, Comment. Math. Univ. Carolin. 6 (1965), 149-155.

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