List questions from partial-differential-equations

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Help with explanation of change of variables (wave equation)

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Application of trace theorem of Sobolev space in hypobolic equation

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Integrating Determinants of Hessian

Published on 29 Mar 2018 - 6:53

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Discuss uniqueness of solution of $\Delta u -u\int_{\Omega}u^2(y)dy=f$

Published on 29 Mar 2018 - 16:53

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Heat Equation (Partial Differential Equation) - Fourier Transform Solution Form.

Published on 25 Mar 2026 - 1:21

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Find two uniform wave solutions with $\lambda > 0$, satisfying the initial condition $u(x, 0) = 3 \cos 2x$

Published on 30 Mar 2018 - 12:09

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Green's function fundamental solution in $\mathbb{R}^2$ going to infinity?

Published on 25 Mar 2026 - 1:21

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Convolution of nonnegative bounded subharmonic function

Published on 25 Mar 2026 - 6:09

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Gradient estimate by using directional derivative

Published on 24 Mar 2026 - 23:42

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Uniqueness for an elliptic problem

Published on 01 Apr 2026 - 15:30

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Relationships between fractional Sobolev space, Bessel spacse and Hajłasz–Sobolev space

Published on 22 Mar 2026 - 23:51

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Critical spaces in Navier-Stokes theory of well posedness

Published on 26 Mar 2026 - 1:23

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Laplace transform of heat equation in spherical coordinates

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Energy for the damped string

Published on 31 Mar 2018 - 12:26

List Question

PDE / Calculus of Variations problem from Evans

Help with explanation of change of variables (wave equation)

Application of trace theorem of Sobolev space in hypobolic equation

Integrating Determinants of Hessian

Discuss uniqueness of solution of $\Delta u -u\int_{\Omega}u^2(y)dy=f$

Heat Equation (Partial Differential Equation) - Fourier Transform Solution Form.

Find two uniform wave solutions with $\lambda > 0$, satisfying the initial condition $u(x, 0) = 3 \cos 2x$

Green's function fundamental solution in $\mathbb{R}^2$ going to infinity?

Convolution of nonnegative bounded subharmonic function

Gradient estimate by using directional derivative

Uniqueness for an elliptic problem

Relationships between fractional Sobolev space, Bessel spacse and Hajłasz–Sobolev space

Critical spaces in Navier-Stokes theory of well posedness

Laplace transform of heat equation in spherical coordinates

Energy for the damped string

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