List questions from partial-differential-equations

Published on 04 Apr 2026 - 9:00

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Poincare Inequality

Published on 26 Mar 2026 - 21:08

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Showing that the $L^2$ inequality does not hold

Published on 25 Mar 2026 - 12:15

114

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Allen-Cahn heteroclinic

Published on 13 Apr 2018 - 7:34

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Find linearization

Published on 13 Apr 2018 - 9:34

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Prove $(y^2-zx)\frac{\partial u}{\partial x}+(x^2-yz)\frac{\partial u}{\partial y}+(z^2-xy)\frac{\partial u}{\partial z}=0$, $u=f(x^2+2yz,y^2+2zx)$

Published on 13 Apr 2018 - 11:14

303

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Goursat Problem Solution

Published on 31 Mar 2026 - 23:00

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Find the domain of definition for this quasilinear equation

Published on 25 Mar 2026 - 0:41

103

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How solve the following PDE?

Published on 13 Apr 2018 - 22:06

906

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Subsidiary Differential Equation

Published on 02 Apr 2026 - 2:15

174

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1d PDE's on infinite Domains using fundamental solutions.

Published on 25 Mar 2026 - 6:02

131

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why is the ratio $\frac{r^2}{t}$ important for solving the heat equation?

Published on 25 Mar 2026 - 3:02

73

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Existence and uniqueness for the spherically symmetric Schrödinger equation

Published on 25 Mar 2026 - 14:12

82

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Existence of a function at base for periodicity

Published on 14 Apr 2018 - 19:30

65

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What is the meaning of the operator $\nabla_y$?

Published on 15 Apr 2018 - 1:09

List Question

Definition of a simple characteristic for an elliptic operator

Poincare Inequality

Showing that the $L^2$ inequality does not hold

Allen-Cahn heteroclinic

Find linearization

Prove $(y^2-zx)\frac{\partial u}{\partial x}+(x^2-yz)\frac{\partial u}{\partial y}+(z^2-xy)\frac{\partial u}{\partial z}=0$, $u=f(x^2+2yz,y^2+2zx)$

Goursat Problem Solution

Find the domain of definition for this quasilinear equation

How solve the following PDE?

Subsidiary Differential Equation

1d PDE's on infinite Domains using fundamental solutions.

why is the ratio $\frac{r^2}{t}$ important for solving the heat equation?

Existence and uniqueness for the spherically symmetric Schrödinger equation

Existence of a function at base for periodicity

What is the meaning of the operator $\nabla_y$?

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