Geodesic
Twisted Alexander polynomials detect fibered 3-manifolds
Stefan Friedl1 ; Stefano Vidussi2
1 Mathematisches Institut<br/> Universität zu Köln<br/> 50931 Köln <br/> Germany
2 Department of Mathematics<br/> University of California Riverside<br/>Riverside, CA 92521
Annals of mathematics, Tome 173 (2011) no. 3, pp. 1587-1643.

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A classical result in knot theory says that for a fibered knot the Alexander polynomial is monic and that the degree equals twice the genus of the knot. This result has been generalized by various authors to twisted Alexander polynomials and fibered 3-manifolds. In this paper we show that the conditions on twisted Alexander polynomials are not only necessary but also sufficient for a 3-manifold to be fibered. By previous work of the authors this result implies that if a manifold of the form $S^1 \times N^3$ admits a symplectic structure, then $N$ fibers over $S^1$. In fact we will completely determine the symplectic cone of $S^1\times N$ in terms of the fibered faces of the Thurston norm ball of $N$.
DOI : 10.4007/annals.2011.173.3.8

Stefan Friedl 1 ; Stefano Vidussi 2

1 Mathematisches Institut<br/> Universität zu Köln<br/> 50931 Köln <br/> Germany
2 Department of Mathematics<br/> University of California Riverside<br/>Riverside, CA 92521 
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Stefan Friedl; Stefano Vidussi. Twisted Alexander polynomials detect fibered 3-manifolds. Annals of mathematics, Tome 173 (2011) no. 3, pp. 1587-1643. doi : 10.4007/annals.2011.173.3.8. http://geodesic.mathdoc.fr/articles/10.4007/annals.2011.173.3.8/

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