11. Electromagnetic waves in free space must be solutions of Maxwell's electromagnetic wave equation . 12. Field equations underlie wave equations , because periodically changing fields generate waves. 13. This equation is actually an acoustic wave equation with viscous attenuation. 14. This solution is the linearly polarized solution of the wave equations . 15. In this case, the linear plasma wave equation can be applied. 16. See electromagnetic wave equation for a discussion of this important discovery. 17. Custom shapes and waves equations are included in MilkDrop version 1.04 and later. 18. Green's functions are also useful tools in solving wave equations and diffusion equations. 19. These formulas provide the solution for the initial-value problem for the wave equation . 20. The addition of sources to the wave equations makes the partial differential equations inhomogeneous.
