12

Answers

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2

Regularity of parabolic equation; divergence free drift

5

Nash’s paper on parabolic equations.

0

Boundedness of a given boundary value problem.

7

Counterexamples in PDE

1

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

2

variation of the obstacle in the obstacle problem

2

Function with all but mixed second partial derivatives twice differentiable?

1

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

1

Spectral radius on 0-1 vectors.

1

Nash inequality on a compact domain?

5

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

2

Square roots of the Laplace operator