The Vlasov equations are introduced as a starting point for
both kinetic theory and fluid theory in a plasma. The equations
of fluid theory are derived by taking moments of Boltzmann's
equation. The fluid theory for a magnetized plasma is called
*magnetohydrodynamics* (MHD). Various properties of the
MHD equations are outlined with reference to the frozen-in flux condition,
magnetic pressure and tension, and MHD waves.

- Distribution functions
- Basic equations
- Fluid theory
- MHD equations
- Magnetic pressure and tension
- MHD waves
- Further Reading: