Naresh Afre - Department of Mathematics, University of Mumbai, Mumbai, India
Anuradha Garge - Department of Mathematics, University Mumbai, Kalina Campus, Mumbai, India

Let R be a commutative ring with unity and let n\geq ۳ be an integer. Let SL_n(R) and E_n(R) denote respectively the special linear group and elementary subgroup of the general linear group GL_n(R). A result of Hurwitz says that the special linear group of size atleast three over the ring of integers of an algebraic number field is finitely generated. A celebrated theorem in group theory states that finite simple groups are two-generated. Since the special linear group of size atleast three over the ring of integers is not a finite simple group, we expect that it has more than two generators. In the special case, where R is the ring of integers of an algebraic number field which is not totally imaginary, we provide for E_n(R) (and hence SL_n(R)) a set of Gow-Tamburini matrix generators, depending on the minimal number of generators of R as a Z-module.

Quadratic extensions, ring of integers of number fields, special linear group, Elementary subgroup