coupled perturbed Hartree-Fock CPHF method

perturbed η-proximal point algorithm

perturbed well

perturbed wave equation

perturbed Volterra-type difference equations

perturbed triplet

Perturbed Trajectories Fitting

perturbed system

perturbed state

perturbed Sparre Andersen surplus model

perturbed solution

perturbed solitary waves

perturbed problem

perturbed plant

quadratic singularly perturbed problem