Show that the solution u of the quasi-linear partial differential equation
u_y + a(u)u_x = 0.
With initial condition u(x,0) = h(x) is given implicitly by
u(x,y) = h(x-a(u)y).
Show that the solution becomes singular for some positive y, unless a(h(s)) is a nondecreasing function of s.© BrainMass Inc. brainmass.com October 9, 2019, 8:34 pm ad1c9bdddf
A quasi linear partial differential equation (PDE) is investigated in this detailed solution which illustrates how substitution can be used to solve for this derivation. The response is enclosed within an attached pdf. file.