  An explicit investigation about the equal-mass two-loop sunrise Feynman graph
is performed. Such perturbative amplitude is related with many important
physical process treated in the standard model context. The background of this
investigation is an alternative strategy to handle with the divergences typical
of perturbative solutions of quantum field theory. Since its proposition, the
mentioned method was exhaustively used to calculate and manipulate one-loop
Feynman integrals with a great success. However, the great advances in
precision of experimental data collected in particle physics colliders have
pushed up theoretical physicists to improve their predictions through
multi-loops calculations. In the present job, we describe the main steps
required to perform two-loops calculations within the context of the referred
method. We show that the same rules used for one-loop calculations are enough
to deal with two-loops graphs as well. Analytic results for the sunrise graph
are obtained in terms of elliptic multiple polylogarithms as well as a
numerical analysis is provided.
