List questions from elliptic-equations

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How to use comparison principle to prove the following inequality about Laplace equation?

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There exists an function $f$ with this properties?

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Relation between Weierstrass zeta function and Weierstrass sigma function

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How to prove that $\sum_{i,j,k,l=1}^n a^{ij} a^{kl} v_{x_i x_k} v_{x_j x_l} \geq \theta^2|D^2v|^2$?

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A question on Hopf Lemma (strong maximum principle)

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Exact solution of biharmonic equation: clamped plate at 4 points instead of 4 edges

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Two questions from the proof of Harnack's Inequality

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Solvability of a partial differential equation

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Isometry between $C^\infty_c$ and radially symmetric functions in the unit ball

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Pohozaev identity for linear equations

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Regularity of linear elliptic equations: from L^p to Holder estimate

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Three circle theorem subharmonic functions

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Why the solution $u(x)$ of $-\Delta u+u=g(u)$ is $O(e^{-a|x|})$

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Regularity resultado for elliptic operator

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List Question

test of solving XTX=A for X !!

How to use comparison principle to prove the following inequality about Laplace equation?

There exists an function $f$ with this properties?

Relation between Weierstrass zeta function and Weierstrass sigma function

How to prove that $\sum_{i,j,k,l=1}^n a^{ij} a^{kl} v_{x_i x_k} v_{x_j x_l} \geq \theta^2|D^2v|^2$?

A question on Hopf Lemma (strong maximum principle)

Exact solution of biharmonic equation: clamped plate at 4 points instead of 4 edges

Two questions from the proof of Harnack's Inequality

Solvability of a partial differential equation

Isometry between $C^\infty_c$ and radially symmetric functions in the unit ball

Pohozaev identity for linear equations

Regularity of linear elliptic equations: from L^p to Holder estimate

Three circle theorem subharmonic functions

Why the solution $u(x)$ of $-\Delta u+u=g(u)$ is $O(e^{-a|x|})$

Regularity resultado for elliptic operator

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