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Results tagged with wave-equation
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user 1003350
For questions related to solutions and analysis of the wave equation.
2
votes
Accepted
What is the meaning of the wave equation characteristic lines?
Mariano's comment pointed me in the right direction, I believe.
The characteristic lines are "lines on which information can move". So, when $x+ct=C$ is constant, $f(x+ct)$ is constant, but $g(x-ct)$ …
- 349
3
votes
1
answer
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What is the meaning of the wave equation characteristic lines?
Background
I am self-studying Introduction to PDEs by Walter Strauss. In chapter 1, Strauss describes that the characteristic lines of the PDE
$$
au_x+bu_t=0
$$
are given by $bx-at=C$, and the functio …
- 349