E_7 tipi tekil noktası olan altıncı derece yüzey denklemleri

The computation of the fundamental grup of a plane sextic (i.e., curves B ? P2)still remain unanswered problem. There is an huge effort on this subject. In thisthesis, we study plane sextic curves with with a type E_7 singular point, try tostate a geometric approach to compute the fundamental groups of plane sexticswith that type of singular points and develop a trick to find the commutant ofthese groups.