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On elementary equivalence and isomorphism of clone segments

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The principal application of a general theorem proved here shows that for any choice 1≤mnp of integers there exist metric spacesX andY such that the initialk-segments of their clones of continuous maps coincide exactly whenkm, are isomorphic exactly whenkn, and are elementarily equivalent exactly whenkp.

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References

  1. R. H.Bing, Extending a metric,Duke Math. J. 14 (1947), 511–519.

    Article  Google Scholar 

  2. G.Birkhoff and J.D.Lipson, Heterogeneous algebras,J. Comb. Theory 8 (1970), 115–133.

    Google Scholar 

  3. H.Cook, Continua which admit only the identity mapping onto non-degenerate subcontinua,Fund. Math. 60 (1967), 241–249.

    Google Scholar 

  4. J.deGroot Non-archimedean metrics in topology,Proc. Amer. Math. Soc. 7 (1956), 948–953.

    Google Scholar 

  5. P.Erdős and R.Radó, A combinatorial theorem,J. London Math. Soc. 25 (1950), 249–255.

    Google Scholar 

  6. G.A. Grätzer,Universal Algebra, Springer-Verlag, 1979.

  7. K.D.MagillJr., A survey of semigroups of continuous selfmaps,Semigroup Forum 11 (1975/76), 189–282.

    Google Scholar 

  8. R.McKenzie, G.McNulty and W.Taylor,Algebras, lattices, varieties, Volume 1, Brooks/Cole, Monterey, California, 1987.

    Google Scholar 

  9. W. Taylor,The clone of a topological space, Research and Exposition in Mathematics, vol. 13, Heldermann Verlag, 1986.

  10. V.Trnková, Semirigid spaces,Trans. Amer. Math. Soc. 343 (1994), 305–325.

    Google Scholar 

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Dedicated to Prof. László Fuchs on the occasion of his 70th birthday

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Sichler, J., Trnková, V. On elementary equivalence and isomorphism of clone segments. Period Math Hung 32, 113–128 (1996). https://doi.org/10.1007/BF01879737

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  • DOI: https://doi.org/10.1007/BF01879737

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