Michael S. Ruderman is Professor of Applied Mathematics at the School of Mathematics and Statistics of the University of Sheffield. His main scientific interest is in hydrodynamic and hydromagnetic wave propagation in the solar and stellar atmospheres. His main achievements are in the field of linear and nonlinear hydromagnetic wave propagation in ionised gases.

1 Introduction.- 2 Mathematical Preliminaries.- 3 Continuum Kinematics.- 4 Continuum Dynamics.- 5 Ideal Incompressible Fluids.- 6 Linear Elasticity.- 7 Viscous Incompressible Fluids.- 8 Ideal Barotropic Fluids.- 9 Non-ideal Compressible Fluids.- A Solutions to Problems.- Index