Abstract
We introduce and study equational domains and equational codomains. Informally, an equational domain is an algebra every finite union of algebraic sets over which is an algebraic set; an equational codomain is an algebra every proper finite union of algebraic sets over which is not an algebraic set.
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Supported by RFBR (project No. 08-01-00067).
Translated from Algebra i Logika, Vol. 49, No. 6, pp. 715-756, November-December, 2010.
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Daniyarova, É.Y., Myasnikov, A.G. & Remeslennikov, V.N. Algebraic geometry over algebraic structures. IV. Equational domains and codomains. Algebra Logic 49, 483–508 (2011). https://doi.org/10.1007/s10469-011-9112-2
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DOI: https://doi.org/10.1007/s10469-011-9112-2