Geodesic
Complexity of quasivariety lattices for varieties of unary algebras.~II
Sibirskie èlektronnye matematičeskie izvestiâ, Tome 13 (2016), pp. 388-394

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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. 
@article{SEMR_2016_13_a12,
     author = {A. V. Kravchenko},
     title = {Complexity of quasivariety lattices for varieties of unary {algebras.~II}},
     journal = {Sibirskie \`elektronnye matemati\v{c}eskie izvesti\^a},
     pages = {388--394},
     publisher = {mathdoc},
     volume = {13},
     year = {2016},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/SEMR_2016_13_a12/}
}
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A. V. Kravchenko. Complexity of quasivariety lattices for varieties of unary algebras.~II. Sibirskie èlektronnye matematičeskie izvestiâ, Tome 13 (2016), pp. 388-394. http://geodesic.mathdoc.fr/item/SEMR_2016_13_a12/