Sunday, October 11, 2015

Partial Differntial problem Cauchy

Find surface of

$\begin{array}{l}
\Pr oblem{\rm{ Cauchy}} \\
{a^2} \cdot {x_2} \cdot u \cdot {u_{{x_1}}} + {b^2} \cdot {x_1} \cdot u \cdot…


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