Singularities in general are considered to be one of the important issues in
algebraic geometry and applied mathematics, among them the ADE or simple
singularities which drew attention since they have appeared separately in
various areas of scient
ific applications. The name comes from three graphs
characterized by letters A, D and E denoting types of Lie groups. Arnold
stated them in a direct manner. Many people gave studies about the subject
like Roczen.M who presented the canonical resolution in dimension 3 and
Char ≠ 2. giving an equivalent non-singular variety is what meant by
resolution, Canonical resolution adds a description of the exceptional loci.