Author/Authors :
Ford، H. C. نويسنده , , Illingworth، G. D. نويسنده , , Blakeslee، J. P. نويسنده , , Postman، M. نويسنده , , Mei، S. نويسنده , , Homeier، N. L. نويسنده , , Demarco، R. نويسنده , , Menanteau، F. نويسنده , , Zirm، A. نويسنده ,
Abstract :
We construct an infinite family of hyperbolic 3manifolds whose fundamental groups are cyclically presented. We prove that these 3-manifolds are cyclic branched coverings of S3 over the 2-bridge knot b (17,4). Finally, we compute thehomology groups and discuss the spines of our manifolds which correspond to some group presentations
Keywords :
elliptical and lenticular , spiral , cDgalaxies , evolutiongalaxies , galaxies , generalgalaxies , Clusters
