List questions from partial-differential-equations

Published on 15 Apr 2026 - 10:44

72

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Solution to Diffusion Equation in similar (but slightly different) situations

Published on 17 Apr 2026 - 15:17

413

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Wave equation with Neumann BC on semi-infinite domain

Published on 25 Mar 2026 - 17:25

77

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Solutions to $\Delta u = u_{xx} + u_{yy} + u_{zz} = 0$ that only depend on r

Published on 12 Apr 2026 - 6:16

113

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How to show that strictly hyperbolic implies strongly well posed?

Published on 14 Apr 2026 - 11:42

199

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Solving Wave Equation on $0 < x < L$ with initial condition containing both sine and cosine terms

Published on 25 Mar 2026 - 17:26

93

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$u=f(\frac{x}{y})$ as a solution to $\Delta u = 0$

Published on 13 Apr 2026 - 21:33

86

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Coordinate transformation of a multivariables polynomial $p(\xi)=\sum_{|\alpha|=k}c_\alpha \xi^\alpha$.

Published on 18 Apr 2026 - 22:33

398

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Weak star convergent sequence in $L^\infty(0,T; L^2(\Omega))$

Published on 25 Mar 2026 - 14:12

450

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Infinitely many solutions for a first order Cauchy problem.

Published on 16 Apr 2026 - 12:21

59

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First order PDEs (Cauchy Problem)

Published on 11 Apr 2026 - 2:57

420

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ACL characterization of functions in $W^{1,\infty}(\Omega)$

Published on 12 Apr 2026 - 20:53

348

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Solution of PDE with non-constant coefficients

Published on 10 Apr 2026 - 23:19

295

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Trying to solve wave equation with initial condition

Published on 13 Apr 2026 - 11:44

80

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Regularity of infinity harmonic functions in $~\mathbb{R}^{2}~$.

Published on 13 Apr 2026 - 17:39

List Question

Equivalent solutions to Fourier series of $e^x$

Solution to Diffusion Equation in similar (but slightly different) situations

Wave equation with Neumann BC on semi-infinite domain

Solutions to $\Delta u = u_{xx} + u_{yy} + u_{zz} = 0$ that only depend on r

How to show that strictly hyperbolic implies strongly well posed?

Solving Wave Equation on $0 < x < L$ with initial condition containing both sine and cosine terms

$u=f(\frac{x}{y})$ as a solution to $\Delta u = 0$

Coordinate transformation of a multivariables polynomial $p(\xi)=\sum_{|\alpha|=k}c_\alpha \xi^\alpha$.

Weak star convergent sequence in $L^\infty(0,T; L^2(\Omega))$

Infinitely many solutions for a first order Cauchy problem.

First order PDEs (Cauchy Problem)

ACL characterization of functions in $W^{1,\infty}(\Omega)$

Solution of PDE with non-constant coefficients

Trying to solve wave equation with initial condition

Regularity of infinity harmonic functions in $~\mathbb{R}^{2}~$.

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