Singular Demo: Monodromy

Monodromy

Task: Compute the monodromy of an isolated hypersurface singularity using the Brieskorn algorithm.

Input: Polynomial f in a series ring defining an isolated hypersurface singularity.
Output: Matrix M such that

is a monodromy matrix of the singularity f.

LIB "monodrom.lib";

ring R=0,(x,y),ds;
poly f=x5+y5+x2y2; // A'Campo example

matrix M=monodromy(f);
print(jordanform(M));

print(jordan(M));