The Hamilton-type principle in fluid dynamics : fundamentals and applications to magnetohydrodynamics, thermodynamics, and astrophysics

General Principles.- Mass Density.- Analytical Mechanics.- Ideal Fluids.- Potential Flow.- Viscous Fluids.- Free Convection.- Magnetohydrodynamics.- Potential Flow in a Magnetic Field.- Magnetohydrodynamic Waves.- The Sunspots.- The Hamilton Equations of Motion.- Thermodynamics.- The Magnetic Field in the Stability of the Stars.