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1 vote

Front tracking approximations and existence of solutions to conservation law PDEs

Let's tackle the two parts separately. Suppose both families are genuinely non-linear. Why do we need to reorder Ψ in the definition of 𝑢̃? To see this, go back to the Riemann problem, which was ...
Parasuram Venkatesh's user avatar
6 votes

Quasilinear wave equations without (weak) null conditions and conjectures

What you've found is basically "survivor bias", so it helps for me to describe a bit where the null conditions came about. Assertion 1: Quasilinear partial differential equations, in ...
Willie Wong's user avatar
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