How can we determine if an equation represents a travelling wave?
68896
Why should a solution to the wave equation be finite?
50434
Understanding the diagrams of electromagnetic waves
102838
How do I integrate the Poisson equation to determine the electric potential along a particular direction (e.g., $z$)?
140352
How can I take a sensitive result for this equation?
97178
Wave speed of a hanging rope
51029
Looking for a hint on the class of a particular equation
153480
Roots of a characteristic equation. Can Mathematica solve it?
36574
Does separation of variables in PDEs give a general solution?
38003
Can we differentiate equations without changing the solutions?
68262
How to prove that a motion is Simple Harmonic Motion (SHM)?
16121
Numerically solve the initial value problem for the 1-D wave equation
69854
Why is there a minus sign in this wave equation derivation?
17501
Optimal resolution of a wave equation
32209
Labeling solutions of an Eigenvalue equation involving Bessel functions
99532
Mathematical precise definition of a PDE being elliptic, parabolic or hyperbolic
155316
Are two waves out of phase only when the phase difference is $\pi$?
107620
Determining stability of the differential equation