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Tolerances and congruences on tree algebras. (English) Zbl 0327.08002


MSC:

08A05 Structure theory of algebraic structures
08Axx Algebraic structures
05C05 Trees
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References:

[1] L. Nebeský: Algebraic Properties of Trees. Acta Univ. Carol. Philologica- Monographia XXV, 1969. · Zbl 0214.23301
[2] O. Ore: Theory of Graphs. Providence 1962. · Zbl 0105.35401
[3] E. C. Zeeman: The Topology of the Brain and Visual Perception. The Topology of 3-Manifolds. by K. M. Fort, pp. 240-256. · Zbl 1246.92006
[4] B. Zelinka: Tolerance in Algebraic Structures. Czech. Math. J. 20 (1970), 179-183. · Zbl 0197.01002
[5] B. Zelinka: Tolerance in Algebraic Structures II. Czech. Math. J. 25 (1975), 175-178. · Zbl 0316.08001
[6] I. Chajda, B. Zelinka: Tolerance Relations on Lattices. Čas. pěstov. mat. 99 (1974), 394-399. · Zbl 0297.06001
[7] B. Zelinka: Tolerance Relations on Semilattices. Comment. Math. Univ. Carol. 16 (1975), 333-338. · Zbl 0326.06004
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