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Subdirect products of pro-p groups

Published online by Cambridge University Press:  09 January 2015

DESSISLAVA H. KOCHLOUKOVA
Affiliation:
Department of Mathematics, State University of Campinas (UNICAMP), BrazilRua Sérgio Buarque de Holanda, 651, Campinas, SP, Brasil, CEP 13083-859. e-mail: desi@ime.unicamp.br
PAVEL A. ZALESSKII
Affiliation:
Department of Mathematics, University of Brasília, BrazilCampus Universitario, Brasilia-DF, Brasil 70910-900. e-mail: zalesski@gmail.com

Abstract

We study when a pro-p subdirect product SG1 × . . . × Gn is of type FPm for m ⩾ 2 for some special pro-p groups Gi. In particular we treat the case when Gi is a finitely generated non-trivial free pro-p product different from C2C2 if p = 2 or a non-abelian pro-p group from the class $\mathcal{L}$ defined in [12].

Type
Research Article
Copyright
Copyright © Cambridge Philosophical Society 2015 

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References

REFERENCES

[1]Ardakov, K.Krull dimension of Iwasawa algebras. J. Algebra 280 (2004), 190206.Google Scholar
[2]Bridson, M. R. and Howie, J.Subgroups of direct products of elementarily free groups. Geom. Funct. Anal. 17 (2007), no. 2, 385403.Google Scholar
[3]Bridson, M. R. and Howie, J.Subgroups of direct products of two limit groups. Math. Res. Lett. 14 (2007), no. 4, 547558.Google Scholar
[4]Bridson, M. R., Howie, J., Miller, C. F. III and Short, H.Subgroups of direct products of limit groups. Ann. of Math. (2) 170 (2009), no. 3, 14471467.Google Scholar
[5]Bridson, M. R., Howie, J., Miller, C. F. III and Short, H.On the finite presentation of subdirect products and the nature of residually free groups. Amer. J. Math. 135 (2013), no. 4, 891933.Google Scholar
[6]Engler, A., Haran, D., Kochloukova, D. and Zalesskii, P. A.Normal subgroups of profinite groups of finite cohomological dimension. J. London Math. Soc. (2) 69 (2004), no. 2, 317332.Google Scholar
[7]Farkas, D. R. and Linnell, P. A.Congruence subgroups and the Atiyah conjecture. Groups, rings and algebras, 89102. Contemp. Math. 420 (Amer. Math. Soc., Providence, RI, 2006).Google Scholar
[8]King, J. D.Homological finiteness conditions for pro-p groups. Comm. Algebra 27 (1999), no. 10, 49694991.Google Scholar
[9]Kochloukova, D.On subdirect products of type FPm of limit groups. J. Group Theory 13 (2010), no. 1, 119.Google Scholar
[10]Kochloukova, D.Subdirect products of free pro-p and Demushkin groups. Intenet. J. Algebra Comput. 23 (2013), no. 5, 10791098.Google Scholar
[11]Kochloukova, D. and Short, H.On subdirect product of free pro-p groups and Demushkin groups of infinite depth. J. Algebra 343 (2011), 160172.Google Scholar
[12]Kochloukova, D. and Zalesskii, P.On pro-p analogues of limit groups via extensions of centralizers. Math. Z. 267 (2011), 109128.Google Scholar
[13]Kochloukova, D. and Zalesskii, P. On pro-p analogues of limit groups via extensions of centralisers. arXiv 1107.2331.Google Scholar
[14]Kochloukova, D. and Zalesskii, P.Fully residually free pro-p groups. J. Algebra 324 (2010), no. 4, 782792.Google Scholar
[15]Kochloukova, D. and Zalesskii, P. Subgroups and homology of pro-p extensons of centralizers of pro-p groups. To appear in Math. Nachr.Google Scholar
[16]Kuckuck, B.Subdirect products of groups and the n - (n + 1) - (n + 2) Conjecture. Quart. J. Math. 65 (2014), 12931318.Google Scholar
[17]Mel'nikov, O. V.Subgroups and the homology of free products of profinite groups. Math. USSR-Izv. 34 (1990), no. 1, 97119.Google Scholar
[18]Ribes, L.On amalgamated products of profinite groups. Math. Z. 123 (1971), 357364.Google Scholar
[19]Ribes, L. and Zalesskii, P.A.Pro-p trees, new horizons in pro-p groups (eds du Sautoy, M, Segal, D. and Shalev, A.). Progr. in Mathe. 184 (Birkhäuser, Boston, 2000).Google Scholar
[20]Snopche, I. and Zalesskii, P.A.Subgroup properties of pro-p extensions of centralisers. Selecta Math. 20 (2014), 465489.Google Scholar
[21]Zalesskii, P.A.Normal subgroups of free constructions of profinite groups and the congruence kernel in the case of positive characteristic. Izv. Russ. Acad. Sciences, Ser Math. 59 (1995), 499516.Google Scholar
[22]Zalesskii, P.A. and Melnikov, O.V.Fundamental groups of graphs of profinite groups. Algebra i Analiz 1 (1989); translated in: Leningrad Math. J. 1 (1990) 921940.Google Scholar
[23]Zapata, T. Grupos pro-finitos limites. PhD. thesis. Universidade de Brasília. (2011).Google Scholar