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Characterization of finitely generated groups by types. / Myasnikov, A. G.; Romanovskii, N. S.
в: International Journal of Algebra and Computation, Том 28, № 8, 01.12.2018, стр. 1613-1632.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Characterization of finitely generated groups by types
AU - Myasnikov, A. G.
AU - Romanovskii, N. S.
PY - 2018/12/1
Y1 - 2018/12/1
N2 - In this paper we show that all finitely generated nilpotent, metabelian, polycyclic, and rigid (hence free solvable) groups G are fully characterized in the class of all groups by the set tp(G) of types realized in G. Furthermore, it turns out that these groups G are fully characterized already by some particular rather restricted fragments of the types from tp(G). In particular, every finitely generated nilpotent group is completely defined by its +-types, while a finitely generated rigid group is completely defined by its types, and a finitely generated metabelian or polycyclic group is completely defined by its -types. We have similar results for some non-solvable groups: free, surface, and free Burnside groups, though they mostly serve as illustrations of general techniques or provide some counterexamples.
AB - In this paper we show that all finitely generated nilpotent, metabelian, polycyclic, and rigid (hence free solvable) groups G are fully characterized in the class of all groups by the set tp(G) of types realized in G. Furthermore, it turns out that these groups G are fully characterized already by some particular rather restricted fragments of the types from tp(G). In particular, every finitely generated nilpotent group is completely defined by its +-types, while a finitely generated rigid group is completely defined by its types, and a finitely generated metabelian or polycyclic group is completely defined by its -types. We have similar results for some non-solvable groups: free, surface, and free Burnside groups, though they mostly serve as illustrations of general techniques or provide some counterexamples.
KW - elementary embedding
KW - free
KW - Group
KW - metabelian
KW - nilpotent
KW - type
KW - ELEMENTARY THEORY
KW - GEOMETRY
UR - http://www.scopus.com/inward/record.url?scp=85054823530&partnerID=8YFLogxK
U2 - 10.1142/S0218196718400118
DO - 10.1142/S0218196718400118
M3 - Article
AN - SCOPUS:85054823530
VL - 28
SP - 1613
EP - 1632
JO - International Journal of Algebra and Computation
JF - International Journal of Algebra and Computation
SN - 0218-1967
IS - 8
ER -
ID: 17119549