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JOURNALS // Izvestiya of Saratov University. Mathematics. Mechanics. Informatics // Archive
Izv. Saratov Univ. Math. Mech. Inform., 2013 Volume 13, Issue 4(2), Pages 108–113 (Mi isu470)
This article is cited in 3 papers

Mathematics

On heredity of formations of monounary algebras

A. L. Rasstrigin

Volgograd State Socio-Pedagogical University, Russia, 400066, Volgograd, Lenin Ave., 27

Abstract: A class of algebraic systems is said to be a formation if it is closed under homomorphic images and finite subdirect products. It has been proven that any formation of at most countable monounary algebras is a hereditary formation.

Key words: unar, formation, hereditary formation.

UDC: 512.577

DOI: 10.18500/1816-9791-2013-13-4-108-113



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© Steklov Math. Inst. of RAS, 2025