Summary
The classical initial value problem for nonlinear hyperbolic equations is solved by a somewhat more direct iteration process than used previously.
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To Mauro Picone on his 70th birthday.
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Courant, R., Lax, P. Cauchy's problem for non-linear hyperbolic differential equations in two independent variables. Annali di Matematica 40, 161–166 (1955). https://doi.org/10.1007/BF02416530
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DOI: https://doi.org/10.1007/BF02416530