SEARCH Articles Figures Tables Approximations perturbation method Asymptotic methods domain perturbation method Bimolecular reactions perturbation methods Brillouin-Wigner perturbation theory many-body method equations Chemical relaxation methods step perturbation Comparison of the Variation and Perturbation Methods Computational chemistry Mpller-Plesset perturbation method Computational singular perturbation method Computational studies free energy perturbation methods Conformation sampling minimum perturbation method Coupled cluster method perturbation expansion Coupled perturbed Hartree-Fock GIAO method Coupled perturbed-Kohn Sham method Coupled-perturbed self-consistent field methods Deuterium isotopic perturbation method E Flow in a Wavy-Wall Channel - Domain Perturbation Method Electron correlation methods Mpller-Plesset perturbation theory Electronic structure methods Moller-Plesset perturbation Fragmentation approach perturbation method Free Energy Perturbation Methods with Quantum Energies Free Energy Perturbation methods Free energy methods thermodynamic perturbation Free energy perturbation and thermodynamic integration methods General perturbation method Generalized perturbation method Hamiltonian operator perturbation method Hartree-Fock finite perturbation method Hartree-Fock method perturbation theory based Helium atom perturbation method application Helium atom, perturbation method Hydration thermodynamic perturbation method Infinite-order perturbation method Isotopic perturbation method temperature dependence Isotopic perturbation, method Iteration-perturbation method MCSCF method coupled perturbed Magnetic field perturbation method Many-body perturbation method Many-body perturbation theory coupled cluster methods Many-body perturbation theory size-consistent methods Many-body perturbation theory, relativistic methods Matrix diagonalization perturbation method Method perturbation, Brillouin-Wigner Method perturbation, Rayleigh-Schrodinger Methods coupled MCSCF-perturbation Methods of Moller-Plesset Perturbation Theory Minimum perturbation method Molecular orbital method and sum-over-states perturbation theory Molecular orbital methods perturbation theory Molecular potential perturbational method Molecular properties perturbation methods Moller-Plesset perturbation method Moller-Plesset perturbation theory method Mpller-Plesset perturbation method Multireference perturbation methods Multistate perturbative methods Partitioning and perturbation methods Perturbation at an Atom in the Simple Hiickel MO Method Perturbation by Paramagnetic Species, the Oxygen Pressure Method Perturbation collocation method Perturbation method Perturbation method Perturbation method alternant hydrocarbons Perturbation method helium ground state application Perturbation method qualitative applications Perturbation method three-orbital systems Perturbation method, in quantum Perturbation method, in quantum mechanics Perturbation methods Schrodinger equation Perturbation methods degenerate case Perturbation methods for computing Perturbation methods linear response Perturbation methods regular Perturbation methods singular Perturbation methods, solvation Perturbation molecular orbital method Perturbation theory Perturbative methods Perturbation theory integral equation methods Perturbation theory method Perturbation theory optimization methods Perturbation theory related to variation method Perturbation theory semiclassical method Perturbation theory, general methods Perturbation theory, general methods for two-group model Perturbational Molecular Orbital (PMO) Method Perturbational configuration interaction method Perturbational molecular orbital method Perturbative methods Perturbative methods Perturbed matrix method Perturbed matrix method basic derivations Perturbed matrix method surfaces Perturbed stationary state method Potential energy surfaces, calculation perturbation methods Quantum mechanical perturbation method Rayleigh-Schrodinger perturbation theory method Reductive Perturbation Method Schrodinger equation perturbational methods Single Perturbation Methods Single-reference perturbative methods Small amplitude perturbations and impedance methods Solvation Energies by Free-Energy Perturbation Methods Symmetry-adapted perturbation theory method The Perturbation Method The Scope and Methods oF Perturbation Theory The magnetic field perturbation method (MFP) Thermodynamic cycle perturbation method Thermodynamic integration methods perturbation Thermodynamic perturbation method Time-Dependent Perturbation Theory The Sum over States Method Transition metal complexes perturbation methods Variation-perturbation method Vibrational methods perturbation theory Wavefunction perturbation methods