SEARCH Articles Figures Tables Application of Perturbation Theory to Chemical Kinetic Systems Chemical oscillators periodic perturbation Chemical relaxation methods step perturbation Chemical shift perturbation Coupled-perturbed Hartree-Fock chemical shifts Density functional perturbation theory chemical potential Many-body perturbation theory chemical shifts Moller-Plesset perturbation theory chemical applications Perturbation theory chemical reactivity Perturbation theory of chemical reactivity Perturbations of chemical shifts