Abstract.
It is well-known that for the integral group ring of a polycyclic-by-finite group several decision problems including the membership problem for right ideals are decidable. In this paper we define an effective reduction for group rings over finitely generated nilpotent groups — a subclass of polycyclic-by-finite groups. Using this reduction we present a generalization of Buchberger’s Gröbner basis method by giving an appropriate definition of “Gröbner bases” in this setting and by characterizing them using the concepts of saturation and s-polynomials. Our approach allows to compute such Gröbner bases by completion based algorithms and to use these bases to solve the membership problem for right and two-sided ideals in finitely generated nilpotent group rings using Gröbner basis algorithms and reduction.
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Received August 21, 1995; revised version June 3, 1996
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Madlener, K., Reinert, B. A Generalization of Gröbner Basis Algorithms to Nilpotent Group Rings. AAECC 8, 103–123 (1997). https://doi.org/10.1007/s002000050056
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DOI: https://doi.org/10.1007/s002000050056