چكيده به لاتين
A perfect coloring is generalization of the notion of completely regular codes,given by Delsarte. A perfect m-coloring of a graph G with colors is a partition of the vertex set of G into m parts A1,A2,...,Am such that for all i,j∈ {1, · · · ,m}, every vertex of Ai is adjacent to the same number of vertices namely,aij vertices,of Aj The matrix A= (aij)i,j∈{1,··· ,m} is called the parameter matrix,In this thesis, we study the perfect 2-coloring of 3-regular graphs of order less than or equal 10 and 4 regular graphs with order at most 9 .