网络出版日期: 2016-05-15
基金资助
Supported by National Natural Science Foundation of China(11371343)
Structure of SK1(Ζ[C4×C4], 2Ζ[C4×C4])
Online published: 2016-05-15
Supported by
Supported by National Natural Science Foundation of China(11371343)
杨正国 , 唐国平 . SK1(Ζ[C4×C4], 2Ζ[C4×C4])的结构[J]. 中国科学院大学学报, 2016 , 33(3) : 298 -301 . DOI: 10.7523/j.issn.2095-6134.2016.03.002
In this paper we study the K-theory of the integral group ring Ζ[C4×C4]. We prove that the relative SK1 group of the integral group ring Ζ[C4×C4] is an elementary Abelian group of rank-3. We also show that the 4-rank of K2(Ζ[C4×C4]) is at least 1 and the 2-rank of K2(Ζ[C4×C4]) is at least 10.
Key words: integral group ring; relative SK1 group; K2 group
[1] Alperin R C, Dennis R K, Oliver R, et al. SK1 of finite abelian groups.II[J]. Invent Math, 1987,87:253-302.
[2] Chen H, Gao Y B, Tang G P. Calculation of K2(F2[C4×C4)[J]. Journal of Graduate University of Chinese Academy of Sciences, 2011,28(4):419-423.
[3] Rosenberg,J.:Algebraic K-Theory and Its Applications[M].Grad Texts in Math 147,New York:Springer-Verlag,1994.
[4] Dunwoody M J. K2( Z π) for π a group of order two or three[J].J London Math Soc (2),1975,11(4):481-490.
[5] Stein M R.Excision and K2 of group rings[J]. J Pure Appl Algebra,1980,18:213-224.
[6] Dennis R K,Keating M E,Stein M R.Lower bounds for the order of K2( Z G) and Wh2(G) [J]. Math Ann,1976,223: 97-103.
[7] Gao Y B, Tang G P. K2 of finite abelian group algebras[J].J Pure Appl Algebra,2009,213:1 201-1 207.
[8] Milnor J. Introduction to algebraic K-theory[M]. Annals of Math Studies,Vol 72, Princeton: Princeton Univ Press,1971.
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