Continuing our work on the fundamental groups of conic-line arrangements (Amram et al., 2003), we obtain presentations of fundamental groups of the complements of three families of quadric arrangements in P2. The first arrangement is a union of n conics, which are tangent to each other at two common points. The second arrangement is composed of n quadrics which are tangent to each other at one common point. The third arrangement is composed of n quadrics, n-1 of them are tangent to the n-th one and each one of the n-1 quadrics is transversal to the other n-2 ones.
@article{urn:eudml:doc:41901,
title = {Fundamental groups of some special quadric arrangements.},
journal = {Revista Matem\'atica de la Universidad Complutense de Madrid},
volume = {19},
year = {2006},
pages = {259-276},
zbl = {1109.14026},
mrnumber = {MR2241431},
language = {en},
url = {http://dml.mathdoc.fr/item/urn:eudml:doc:41901}
}
Amram, Meirav; Teicher, Mina. Fundamental groups of some special quadric arrangements.. Revista Matemática de la Universidad Complutense de Madrid, Tome 19 (2006) pp. 259-276. http://gdmltest.u-ga.fr/item/urn:eudml:doc:41901/