Abstract
We consider the existence problems for quasiorders on sets in terms of which it is possible to describe the algebraic closure operator on subsets of universal algebras with a given universe.
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Plotkin B. I., “Some concepts of algebraic geometry in universal algebra,” St. Petersburg Math. J., 9, No. 4, 859–879 (1998).
Pinus A. G., “On the quasiorder induced by inner homomorphisms and the operator of algebraic closure,” Sib. Math. J., 56, No. 3, 499–504 (2015).
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The author was supported by the Ministry of Education and Science of the Russian Federation (Government Task No. 2014/138, Project 1052).
Novosibirsk. Translated from Sibirskiĭ Matematicheskiĭ Zhurnal, Vol. 57, No. 5, pp. 1109–1113, September–October, 2016; DOI: 10.17377/smzh.2016.57.516.
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Pinus, A.G. Ihm-admissible and Ihm-forbidden quasiorders on sets. Sib Math J 57, 866–869 (2016). https://doi.org/10.1134/S0037446616050165
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DOI: https://doi.org/10.1134/S0037446616050165