New posts in partial-differential-equations

Explicit worked example of symmetrizing system of conservation laws

Why is it important to study the eigenvalues of the Laplacian?

Wave Equation by separation of variables

Definition of regularity in PDE theory

Wave equation with variable speed coefficient

How about the inclusion relation between $H^1$ and $C^2$?

Will $L^1\log L^1$ bound gives strong $L^1$ convergence?

A proof for $\nabla |u|^p = p\ \text{sgn}(u)|u|^{p-1}\nabla u$.

Norm Inequality on a Compact Riemannian Manifold

Elliptic regularity in Sobolev spaces of negative order

Explicit traveling wave solution for the diffusion equation

Show $\nabla^2g=-f$

difference between second order quasi linear and semi linear PDE

Motivation of Feynman-Kac formula and its relation to Kolmogorov backward/forward equations?

Eigenfunctions of the Helmholtz equation in Toroidal geometry

$u\in C_0^3(\Omega)$ satisfis $ -\Delta u=f(x), x\in\Omega. $Prove that $ \sum_{i,j=1}^{n}\int_\Omega u^2_{x_i x_j} dx\leq n\int_{\Omega}f^2 dx. $

Non-ellipticity of Yang-Mills equations

Integration by parts for general measure?

Textbook for Partial Differential Equations with a viewpoint towards Geometry.

The proof of the Helmholtz decomposition theorem through Neumann boundary value problem