Mollov, T. Zh.; Nachev, N. A. Torsion free rank of the multiplicative group of a commutative semisimple twisted group ring of an Abelian group over a field. (English) Zbl 0727.16020 C. R. Acad. Bulg. Sci. 43, No. 5, 13 (1990). Reviewer: T.Akasaki (Irvine) MSC: 16U60 16S35 PDFBibTeX XMLCite \textit{T. Zh. Mollov} and \textit{N. A. Nachev}, C. R. Acad. Bulg. Sci. 43, No. 5, 13 (1990; Zbl 0727.16020)
Mollov, Todor Zh.; Nachev, Nako A. Torsionfree rank of multiplicative groups of commutative semisimple group algebras over a field. (Russian) Zbl 0718.16028 Serdica 16, No. 2, 160-165 (1990). Reviewer: S.V.Mihovski (Plovdiv) MSC: 16U60 16S35 20K21 20C07 PDFBibTeX XMLCite \textit{T. Zh. Mollov} and \textit{N. A. Nachev}, Serdica 16, No. 2, 160--165 (1990; Zbl 0718.16028)
Nachev, Nako A. The Ulm-Kaplansky invariants of the group of normed units for group algebras of Abelian \(p\)-groups over a commutative ring where \(p\) is an invertible element. (Russian) Zbl 0662.16010 PLISKA, Stud. Math. Bulg. 8, 21-33 (1986). Reviewer: N.A.Nachev MSC: 16U60 16S34 20K99 20C07 20K10 20E07 PDFBibTeX XMLCite \textit{N. A. Nachev}, PLISKA, Stud. Math. Bulg. 8, 21--33 (1986; Zbl 0662.16010)
Nachev, Nako A.; Mollov, Todor Zh. Ulm-Kaplansky invariants of the group of normed units of a modular group ring of a primary Abelian group. (Russian) Zbl 0485.20047 Serdica 6, 258-263 (1980). MSC: 20K99 16S34 16U60 PDFBibTeX XMLCite \textit{N. A. Nachev} and \textit{T. Zh. Mollov}, Serdica 6, 258--263 (1980; Zbl 0485.20047)
Nachev, N. A.; Mollov, T. Zh. Ulm-Kaplansky invariants for the group of normalized units of the centre of an FC-p-group ring over a commutative ring of a characteristic. (Russian) Zbl 0427.20045 C. R. Acad. Bulg. Sci. 32, 1311-1313 (1979). MSC: 20K99 20C07 20F24 20K10 PDFBibTeX XMLCite \textit{N. A. Nachev} and \textit{T. Zh. Mollov}, C. R. Acad. Bulg. Sci. 32, 1311--1313 (1979; Zbl 0427.20045)