This article is cited in 11 papers

Mathematical logic, algebra and number theory

Complexity of quasivariety lattices for varieties of unary algebras. II

A. V. Kravchenko<sup>ab

a</sup> Sobolev Institute of Mathematics, Novosibirsk, Russia
^b Novosibirsk State University, Novosibirsk, Russia

Abstract: We show that some minimal $\mathcal{Q}$-universal variety of unary algebras is complicated in the sense of other measures of complexity for lattices of quasivarieties.

Keywords: quasivariety, lattice of quasivariesties, unary algebra, basis of quasi-identities.

UDC: 512.56

MSC: 08C15

Received May 10, 2016, published May 19, 2016

DOI: 10.17377/semi.2016.13.034

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