%0 Journal Article
%A HUANG Hong
%T *π*_{1}-finite-index Maps from 3-manifolds Covered by Torus Bundles over *S*^{１}
%D 2000
%R
%J Acta Scientiarum Naturalium Universitatis Pekinensis
%P 342-346
%V 36
%N 3
%X It is proved that any *π*_{1}-finite-index map from a closed orientable 3-manifold covered by a torus bundle over *S*^{1} to a closed aspherical orientable irreducible 3-manifold is homotopic to a covering map, and is of non-zero degree. This verifies a special case of the conjecture that any *π*_{1}-surjective map between closed aspherical 3-manifolds having the same rank on *π*_{1} must be of non-zero degree.
%U https://xbna.pku.edu.cn/EN/abstract/article_131.shtml