First Order Partial Differential Equations
Semilinear first order partial differential differential equation in the form equation. a(x,y)ux +b(x,y)uy = f(x,y,u).(1.7) Here the left side of the equation is linear in u, ux and uy. However, the right hand side can be nonlinear in u. For the most part, we will introduce the Method of Characteristics for solving quasilinear equations.
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