Category Documents
PDEtools/ToJet
rewrites in jet notation a given mathematical expression
PDEtools/DeterminingPDE
computes the determining PDE system satisfied by the infinitesimals of the symmetry groups, or the integrating factors or the conserved currents, admitted by a given PDE system
PDEtools/InvariantTransformation
computes transformations reducing by k the number of independent variables of PDE systems admitting a given k-dimensional symmetry group
PDEtools/InfinitesimalGenerator
receives a list with the infinitesimals of a symmetry generator and returns the corresponding infinitesimal generator as a differential operator procedure
PDEtools/SymmetryTest
tests whether a given list of infinitesimals represents a symmetry of a given PDE system.
PDEtools/Invariants
computes the differential invariants associated to a given list of symmetries
PDEtools/D_Dx
differentiate expressions in function or jet notation, with respect to independent or dependent (function) variables of the jet space.
PDEtools/Eta_k
constructs a table-procedure that computes, on request, any prolongation of the infinitesimals of a symmetry generator
PDEtools/Euler
Euler's operator - return the conditions that a DE system must satisfy in order to be the divergence of a current