1.138/2.062/18.376 Rodolfo R. Rosales.
rrr@math.mit.edu 		MIT, Spring 2023.

1.138/2.062/18.376 Wave propagation.
Tue-Thu, 9:30-11:00, in room E25-117.
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DOMAIN OF INFLUENCE.

The picture shows the solution of the "Sine-Gordon" equation
    utt - uxx + sin(u) = 0,
with localized pulse initial values. Note how the solution vanishes outside the domain of influence of the initial conditions.