12

Answers

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7

Counterexamples in PDE

3

Square roots of the Laplace operator

1

Spectral radius on 0-1 vectors.

5

Nash’s paper on parabolic equations.

2

Function with all but mixed second partial derivatives twice differentiable?

1

Nash inequality on a compact domain?

1

Are $\lVert \Delta u \rVert_{L^2(S)}$ and $\lVert u \rVert_{H^2(S)}$ equivalent norms on a compact manifold?

5

Green’s function for a certain elliptic equations with rough coefficients

2

Change in neumann boundary conditions through coordinate transformation of elliptic PDE, weak formulation

2

Regularity of parabolic equation; divergence free drift

2

variation of the obstacle in the obstacle problem

0

Boundedness of a given boundary value problem.