List questions from partial-differential-equations

Published on 10 Apr 2026 - 17:43

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Boundary Value Problem$ 5U_x+2U_y=(x-y)^2$

Published on 15 May 2026 - 9:44

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Eigenpairs of the Potential Equation in 1D

Published on 11 Apr 2026 - 0:11

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Is $w =\text{ max}(v_1, v_2)$ subarmonic if $v_1$ and $v_2$ are?

Published on 13 Apr 2026 - 22:32

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An exercise in Treves related to Cauchy-Riemann operator

Published on 09 Apr 2026 - 17:32

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Relation between fractional integral operator and solution of poisson equation

Published on 08 Apr 2026 - 19:33

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Is there a local flow that is diffeomorphic at any time?

Published on 11 Apr 2026 - 11:06

871

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Does every function with $f_x,f_y>0,f_{xx},f_{yy}<0$ with particular condition have to satisfy $f_{xy}/f_{xx} = -x/y$?

Published on 16 Apr 2026 - 1:51

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Conservation laws - Airy's equation

Published on 17 Apr 2026 - 6:11

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Characterization of Sobolev Space

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Why are all Laplacian eigenfunctions on the square obtained by separation of variables?

Published on 14 Apr 2026 - 0:52

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Minimizing cost function (Eikonal)

Published on 10 Apr 2026 - 2:35

211

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How can I calculate the integral??

Published on 08 Apr 2026 - 23:09

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Which of them is the correct solution?

Published on 14 Apr 2026 - 20:52

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Questions--Heat equation with $x>0,t>0$

Published on 16 Apr 2026 - 23:25

List Question

eignvalues of Laplacian operator and distributions

Boundary Value Problem$ 5U_x+2U_y=(x-y)^2$

Eigenpairs of the Potential Equation in 1D

Is $w =\text{ max}(v_1, v_2)$ subarmonic if $v_1$ and $v_2$ are?

An exercise in Treves related to Cauchy-Riemann operator

Relation between fractional integral operator and solution of poisson equation

Is there a local flow that is diffeomorphic at any time?

Does every function with $f_x,f_y>0,f_{xx},f_{yy}<0$ with particular condition have to satisfy $f_{xy}/f_{xx} = -x/y$?

Conservation laws - Airy's equation

Characterization of Sobolev Space

Why are all Laplacian eigenfunctions on the square obtained by separation of variables?

Minimizing cost function (Eikonal)

How can I calculate the integral??

Which of them is the correct solution?

Questions--Heat equation with $x>0,t>0$

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