List questions from laplacian

Published on 27 Mar 2026 - 13:47

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Properties of the inverse Laplacian operator

Published on 25 Mar 2026 - 22:26

45

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What does $F$ stand for in this equation $\Delta f = \Delta_0 f + n \frac{\partial F}{\partial r} + \frac{\partial^2 F}{\partial^2 r}$?

Published on 29 Mar 2026 - 12:47

111

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How to calculate the weights for Discrete Laplacian Operator?

Published on 25 Jul 2023 - 19:47

80

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What determines the coefficients of the laplacian filter?

Published on 26 Mar 2026 - 16:05

47

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Non-standard finite difference for a reaction diffusion system

Published on 26 Mar 2026 - 4:29

31

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$L^{\infty}$ norms of Robin eigenfunctions

Published on 26 Mar 2026 - 20:38

97

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Connection laplacian and abstract index notation

Published on 01 Aug 2023 - 8:43

29

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Parameter range below critical exponent

Published on 02 Aug 2023 - 12:46

61

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Is $\sigma(-\Delta)=\sigma_{\mathrm{ess}}(-\Delta)$? Or under which conditions do we have this?

Published on 08 Aug 2023 - 16:44

131

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About the notation of $2$D Laplace operator

Published on 25 Mar 2026 - 11:18

59

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If $p$ is bounded and bounded away from $0$, can we find upper and lower bound for $\|\nabla\hat p\|^2+\Delta\hat p$?

Published on 25 Mar 2026 - 18:50

51

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Is the kernel of the Laplacian fractional operator positive and us a Schwartz function?

Published on 27 Mar 2026 - 6:07

179

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solution of $\nabla^2 \phi = K\phi \nabla^2 \frac{1}{\phi}$

Published on 19 Aug 2023 - 11:51

66

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Existence of a solution to the Dirichlet problem

Published on 25 Aug 2023 - 14:32

List Question

Solving the 2D Poisson equation relying on 1D formulations on the x- and the y- axis

Properties of the inverse Laplacian operator

What does $F$ stand for in this equation $\Delta f = \Delta_0 f + n \frac{\partial F}{\partial r} + \frac{\partial^2 F}{\partial^2 r}$?

How to calculate the weights for Discrete Laplacian Operator?

What determines the coefficients of the laplacian filter?

Non-standard finite difference for a reaction diffusion system

$L^{\infty}$ norms of Robin eigenfunctions

Connection laplacian and abstract index notation

Parameter range below critical exponent

Is $\sigma(-\Delta)=\sigma_{\mathrm{ess}}(-\Delta)$? Or under which conditions do we have this?

About the notation of $2$D Laplace operator

If $p$ is bounded and bounded away from $0$, can we find upper and lower bound for $\|\nabla\hat p\|^2+\Delta\hat p$?

Is the kernel of the Laplacian fractional operator positive and us a Schwartz function?

solution of $\nabla^2 \phi = K\phi \nabla^2 \frac{1}{\phi}$

Existence of a solution to the Dirichlet problem

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