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Polymorphism-Homogeneous Monounary Algebras

  • Zuzana Farkasová EMAIL logo and Danica Jakubíková-Studenovská
Published/Copyright: May 22, 2015
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Abstract

An n-ary local polymorphism of a given monounary algebra A is a homomorphism from a finitely generated subalgebra of An to A. A is n-polymorphism-homogeneous if each n-ary local polymorphism can be extended to a global polymorphism. Then A is called polymorphism-homogeneous, if it is n-polymorphism-homogeneous for each positive integer n. In this paper we describe all polymorphism-homogeneous monounary algebras.

References

[1] BARTOL, W.: Dynamic Programs of Computations, PAN, Warszawa, 1974.Search in Google Scholar

[2] BURRIS, S.-SANKAPPANAVAR, H. P.: A Course in Universal Algebra, The milenium edition, Springer-Verlag, 1981.10.1007/978-1-4613-8130-3Search in Google Scholar

[3] CAMERON, P. J.-NEŠETŘIL, J.: Homomorphism-homogeneous relational structures, Combin. Probab. Comput. 15 (2006), 91-103.10.1017/S0963548305007091Search in Google Scholar

[4] DOLINKA, I.-MAŠULOVIĆ, D.: Remarks on homomorphism-homogeneous lattices and semilattices, Monatsh. Math. 164 (2011), 23-37.10.1007/s00605-010-0225-9Search in Google Scholar

[5] FRÄISSÉ, R.: Theory of Relations, North-Holland, Amsterdam, 1986.Search in Google Scholar

[6] GRÄTZER, G.: Universal Algebra, Springer, New York, 2008.10.1007/978-0-387-77487-9Search in Google Scholar

[7] ILIĆ, A.-MAŠULOVIĆ, D.-RAJKOVIĆ, U.: Finite homomorphism-homogeneous tournaments with loops, J. Graph Theory 59 (2008), 45-58.10.1002/jgt.20322Search in Google Scholar

[8] JAKUBÍKOVÁ-STUDENOVSKÁ, D.: Homogeneous monounary algebras, Czechoslovak Math. J. 52 (2002), 309-317.10.1023/A:1021722527256Search in Google Scholar

[9] JAKUBÍKOVÁ-STUDENOVSKÁ, D.: On 2-homogeneity of monounary algebras, Czechoslovak Math. J. 53 (2003), 55-68.10.1023/A:1022919307623Search in Google Scholar

[10] JAKUBÍKOVÁ-STUDENOVSKÁ, D.: Partially-2-homogeneous monounary algebras, Czechoslovak Math. J. 53 (2003), 655-668.10.1023/B:CMAJ.0000024511.63386.25Search in Google Scholar

[11] JAKUBÍKOVÁ-STUDENOVSKÁ, D.-P´OCS, J.: Monounary Algebras, UPJŠ Košice, Košice, 2009.Search in Google Scholar

[12] JEAVONS, P.-COHEN, D.-PEARSON, J.: Constraint and universal algebra, Ann. Math. Artif. Intell. 24 (1998), 51-67.10.1023/A:1018941030227Search in Google Scholar

[13] JÓNSSON, B.: Topics in Universal Algebra, Springer, Berlin, 1972.10.1007/BFb0058648Search in Google Scholar

[14] JUNGÁBEL, É.-MAŠULOVIĆ, D.: Homomorphism-homogeneous monounary algebras, Math. Slovaca 63 (2013), 993-1000.10.2478/s12175-013-0149-7Search in Google Scholar

[15] MAŠULOVIĆ, D.-NENADOV, R.-ŠKORIĆ, N.: Finite irreflexive homomorphismhomogeneous binary relational systems, Novi Sad J. Math. 40 (2010), 83-87.Search in Google Scholar

[16] MAŠULOVIĆ, D.-NENADOV, R.-ŠKORIĆ, N.: On finite reflexive homomorphismhomogeneous binary relational systems, Discrete Math. 311 (2011), 2543-2555.10.1016/j.disc.2011.07.032Search in Google Scholar

[17] NEUMANN, von J.: Lectures on Continuous Geometries, Princeton University Press, Princeton, 1936-1937.Search in Google Scholar

[18] PECH, CH.-PECH. M.: On polymorphism-homogeneous relational structures and their clones, Algebra Universalis 73 (2015), 53-85.10.1007/s00012-014-0310-3Search in Google Scholar

[19] PIERCE, R. S.: Some questions about complete Boolean algebras. In: Proc. Sympos. Pure Math. 2, Amer. Math. Soc., Providence, RI, 1961, pp. 129-140.Search in Google Scholar

[20] PITKETHLY, J-DAVEY, B.: Dualisability Unary Algebras and Beyond, Springer, New York, 2005.Search in Google Scholar

[21] RUSINOV, M.-SCHWEITZER, P.: Homomorphism-homogeneous graphs, J. Graph Theory 65 (2010), 253-262.10.1002/jgt.20478Search in Google Scholar

[22] https://sites.google.com/site/ssalgebra2012/program Search in Google Scholar

Received: 2013-2-7
Accepted: 2013-6-6
Published Online: 2015-5-22
Published in Print: 2015-4-1

© Mathematical Institute Slovak Academy of Sciences

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