PlanetPhysics/Topic on Equations in Mathematical Physics

This is a contributed topic on equations in mathematical physics.

List of Physical/Mathematical Physics Laws and Equations

 * Newton's laws of classical dynamics (laws of motion)
 * Law of conservation of energy
 * Conservation of angular momentum
 * Classical and Quantum Hamiltonian Equations
 * Einstein's law of mass-energy conservation (or `mass--energy equivalence')
 * Einstein's field equations
 * Euler--Lagrange equations
 * Kepler's laws
 * Navier-Stokes equations of fluid dynamics
 * Snell's law in optics
 * Newton's law of gravitation
 * Coulomb's law
 * Gauss's Law of magnetostatics
 * Curie law in magnetism
 * Ohm's law
 * Faraday's law
 * Amp\`ere's law
 * Kirkhoff electrical circuit equations
 * Lorentz force law
 * Hook's law (elasticity equation)
 * Lambert-Beer law
 * wave equations
 * Maxwell's equations
 * Li\'enard-Wiechert Potentials and electrodynamic equations
 * Schr\"odinger equation
 * Heisenberg's quantum dynamics equation
 * Gaussian metric (equation)
 * Relativistic energy-momentum equation
 * Relativistic center-of-mass theorem
 * Relativistic equality of gravitational and inertial mass
 * Thomson scattering cross section equation
 * Compton scattering equation and
 * Klein--Nishina equation for the differential cross section for Compton scattering
 * Lorentz transformation
 * Einstein's (GR) field equations
 * Klein-Gordon equation
 * Planck's equation for black body radiation
 * Dirac equation
 * Josephson effect/ tunneling equation
 * d'Alembert equation
 * Heat transfer equations
 * Diffusion equations
 * Yukawa's nuclear force equation
 * Goldstone's theorem and symmetry breaking
 * Bloch equations in Nuclear Magnetic resonance (NMR)
 * Resonance equations
 * Dispersion equations
 * de Broglie equation
 * Laws of Thermodynamics
 * Boltzmann distribution law in statistical mechanics
 * ideal gas laws
 * Gibbs equation
 * Boltzmann equation
 * Debye equation
 * Onsager's principle (flux equations)
 * Kirkwood proton and dipole fluctuation equations
 * Doppler effect equation
 * Red shift equation
 * Thompson equation for the period of electrical oscillation
 * Bragg diffraction equation
 * heat equation
 * heat radiation equation
 * Heat conduction equation
 * kinetic energy equation
 * physical laws as consequences of symmetry
 * Chaotic dynamics equations
 * Y
 * W
 * Z