Mathematically, the wave equation that describes light as an electromagnetic wave would lose its time-dependence.
Kernels can be found, for example, by separating solutions of the wave equation in other systems of orthogonal coordinates.
After the conformal mapping, the wave equation takes the form: where s is a scale factor.
Adaptation of mimetic finite difference discretization to reducing numerical dispersion in wave equation.
British Dictionary definitions for wave equation
(physics) a partial differential equation describing wave motion. It has the form ∇²φ = (1/c²) × (∂²φ/∂t²), where ∇² is the Laplace operator, t the time, c the speed of propagation, and φ is a function characterizing the displacement of the wave
A partial differential equation that describes the shape and movement of waves, given a set of boundary conditions (such as the initial shape of the wave, or the evolution of a force affecting the wave).