On the complexity of the lattices of subvarieties and congruences. / Kravchenko, A. V.; Nurakunov, A. M.; Schwidefsky, M. V.
In: International Journal of Algebra and Computation, Vol. 30, No. 8, 12.2020, p. 1609-1624.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - On the complexity of the lattices of subvarieties and congruences
AU - Kravchenko, A. V.
AU - Nurakunov, A. M.
AU - Schwidefsky, M. V.
N1 - Publisher Copyright: © 2020 World Scientific Publishing Company. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/12
Y1 - 2020/12
N2 - We find sufficient conditions guaranteeing that for a quasivariety M of structures of finite type containing a B-class with respect to M, there exists a subquasivariety K⊂M and a structure AϵK such that the problems whether a finite lattice embeds into the lattice Lv(K) of K-varieties and into the lattice ConK are undecidable.
AB - We find sufficient conditions guaranteeing that for a quasivariety M of structures of finite type containing a B-class with respect to M, there exists a subquasivariety K⊂M and a structure AϵK such that the problems whether a finite lattice embeds into the lattice Lv(K) of K-varieties and into the lattice ConK are undecidable.
KW - Computable set
KW - congruence
KW - lattice
KW - undecidable problem
KW - variety
UR - http://www.scopus.com/inward/record.url?scp=85091754248&partnerID=8YFLogxK
U2 - 10.1142/S0218196720500563
DO - 10.1142/S0218196720500563
M3 - Article
AN - SCOPUS:85091754248
VL - 30
SP - 1609
EP - 1624
JO - International Journal of Algebra and Computation
JF - International Journal of Algebra and Computation
SN - 0218-1967
IS - 8
ER -
ID: 25677640