The aim of this package is to show a possible implementation of perturbation methods with Mathematica. It can be used to generate educational examples of perturbation ...

The package provides routines for first- and second-order Rayleigh-Schroedinger perturbation theory in a matrix hamiltonian formalism, i.e., first and second order ...

The Sitnikov problem is one of the most simple cases of the elliptic restricted three body system. A massless body oscillates along a line (z) perpendicular to a plane (x, y) ...

We provide here all the procedures in Mathematica which are needed for the computation of the analytic images of the strong coupling constant powers in Minkowski (¯Aν ...

This algorithm generates a short rational generating function G(z) for a bounded input polyhedron P defined by a system of rational linear inequalities Ax <= b. This ...

Abstract: We study the transient dynamics, following a spatially-extended perturbation of models describing populations residing in advective media such as streams and ...

We solve analytically and numerically the generalized Einstein equations in scalar-tensor cos- mologies to obtain the evolution of dark energy and matter linear ...

In this paper we discuss ways of parallelizing methods of perturbation analysis. Application of the perturbation method of multiple scales to vibration problems in ...

We introduce a double power series method for finding approximate analytical solutions for systems of differential equations commonly found in cosmological perturbation ...

Perturbation–iteration method is generalized for systems of first order differential equations. Approximate solutions of Lotka–Volterra systems are obtained using the ...