Types of linear second order PDEs
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Why are second order linear PDEs classified as either elliptic, hyperbolic or parabolic?
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First order weak derivatives of $f(x)=|x|^r$
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Order of convergence of a two-step iteration method
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Method of characteristics for Burgers' equation with rectangular data
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How to express a 2nd order ODE as 1st order ODE's?
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How to get solutions in elementary functions to the following non-linear ODE
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Equality of mixed partial derivatives
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Runge-Kutta fourth order with negative stepsize
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2D inhomogeneous biharmonic equation
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Linear vs nonlinear differential equation
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Linearization of PDE: $0$ is an eigenvalue since all translates of travelling waves are also travelling waves
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A problem from Evans' PDEs book: find a Lagrangian for a given Euler-Lagrange equation
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Good Textbook in Numerical PDEs?
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Solve a PDE on a domain $\Omega$ with given boundary conditions
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PDE list of equations, derivative for boundarry condition evaluates to true
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Partial Differential Equation $U_t - (U_x)^2 = 0$
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Exact Solutions to the Navier-Stokes Equations