List questions from laplacian

Published on 10 May 2026 - 13:46

166

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Restrictions on Laplacian eigenvalues in 1 dimension

Published on 11 Apr 2026 - 8:35

2.6k

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Removable singularity for harmonic functions

Published on 12 Apr 2026 - 16:12

1k

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Are spherical harmonics harmonic?

Published on 10 May 2026 - 15:49

268

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A question about orthogonal functions and Laplace's equation

Published on 10 May 2026 - 15:51

57

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Scale-dependent isoperimetric inequalities (e.g. with heat kernel?)

Published on 10 May 2026 - 15:43

261

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Poincaré's inequality on manifolds

Published on 10 Apr 2026 - 23:45

50

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Cylindrical Operator

Published on 29 Apr 2026 - 12:45

456

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Difference between $\Delta_g \phi$ and $\Delta \phi ~$?

Published on 15 Apr 2026 - 6:51

392

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How to find eigenvalues and eigenfunctions of simple-looking differential operator

Published on 10 May 2026 - 15:44

56

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Decomposition of Schroedinger operator to left and right hand sides

Published on 16 Apr 2026 - 21:58

121

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$\int_V \left( g\nabla^2f-f \nabla^2g \right) dV=\int_S \left( g\nabla f-f \nabla g \right) \cdot u_n \, dS$ not depend on time

Published on 10 May 2026 - 15:03

111

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Given function $f$ find directional derivative of $\lVert \nabla f \rVert$ in direction given by $\nabla f$

Published on 10 May 2026 - 14:49

191

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PDE: BVP of Laplace equation on $\mathbb{R}\times [0,+\infty)$

Published on 13 Apr 2026 - 5:54

600

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What is Laplace transform of $\frac{e^{-t}}t \sin3t\sin2t$

Published on 14 Apr 2026 - 20:01

List Question

Laplacian on minimal surface

Restrictions on Laplacian eigenvalues in 1 dimension

Removable singularity for harmonic functions

Are spherical harmonics harmonic?

A question about orthogonal functions and Laplace's equation

Scale-dependent isoperimetric inequalities (e.g. with heat kernel?)

Poincaré's inequality on manifolds

Cylindrical Operator

Difference between $\Delta_g \phi$ and $\Delta \phi ~$?

How to find eigenvalues and eigenfunctions of simple-looking differential operator

Decomposition of Schroedinger operator to left and right hand sides

$\int_V \left( g\nabla^2f-f \nabla^2g \right) dV=\int_S \left( g\nabla f-f \nabla g \right) \cdot u_n \, dS$ not depend on time

Given function $f$ find directional derivative of $\lVert \nabla f \rVert$ in direction given by $\nabla f$

PDE: BVP of Laplace equation on $\mathbb{R}\times [0,+\infty)$

What is Laplace transform of $\frac{e^{-t}}t \sin3t\sin2t$

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