#### Volume 6, issue 4 (2006)

 1 J C Cha, Fibred knots and twisted Alexander invariants, Trans. Amer. Math. Soc. 355 (2003) 4187 MR1990582 2 R H Crowell, The annihilator of a knot module, Proc. Amer. Math. Soc. 15 (1964) 696 MR0167976 3 J Hillman, Algebraic invariants of links, Series on Knots and Everything 32, World Scientific Publishing Co. (2002) MR1932169 4 J A Hillman, C Livingston, S Naik, Twisted Alexander polynomials of periodic knots, Algebr. Geom. Topol. 6 (2006) 145 MR2199457 5 P Kirk, C Livingston, Twisted Alexander invariants, Reidemeister torsion, and Casson-Gordon invariants, Topology 38 (1999) 635 MR1670420 6 M Lackenby, Some 3-manifolds and 3-orbifolds with large fundamental group arXiv:math.GT/0507283 7 X S Lin, Representations of knot groups and twisted Alexander polynomials, Acta Math. Sin. $($Engl. Ser.$)$ 17 (2001) 361 MR1852950 8 J Milnor, Groups which act on $S^n$ without fixed points, Amer. J. Math. 79 (1957) 623 MR0090056 9 D S Silver, S G Williams, Crowell's derived group and twisted polynomials, J. Knot Theory Ramifications (in press) arXiv:math.GT/0506339 10 D S Silver, S G Williams, Lifting representations of $\mathbb Z$-groups, Israel J. Math. 152 (2006) 313 MR2214466 11 M Wada, Twisted Alexander polynomial for finitely presentable groups, Topology 33 (1994) 241 MR1273784