List questions from partial-differential-equations

41

Views

Prove $\phi \in L_{loc}^1(\Re ^3)$ but $\phi \notin L^1(\Re ^3)$ for Poisson's Fundamental Solution in $\Re ^3$

Published on 27 Jan 2018 - 20:23

45

Views

Show that if $\phi \in L^1(\mathbf R)$ and $f \in C_c(\mathbf R)$ then the convolution $\phi * f \in L^\infty(\mathbf R)$

Published on 25 Mar 2026 - 17:27

96

Views

Existence of solution for the modified heat equation

Published on 20 Mar 2026 - 11:45

63

Views

confusion on a definition of Genus

Published on 27 Mar 2026 - 7:56

163

Views

Show that u is harmonic

Published on 26 Mar 2026 - 21:12

59

Views

Dimension of solutions of EDP

Published on 31 Mar 2026 - 9:46

61

Views

Multi-variable chain rule - confusion in application

Published on 29 Mar 2026 - 21:11

408

Views

Over specification of boundary conditions on closed surfaces for Poisson's equation

Published on 20 Mar 2026 - 16:20

77

Views

Does this entangled PDE capture the derivative?

Published on 29 Mar 2026 - 10:14

34

Views

question about pde

Published on 24 Mar 2026 - 15:01

749

Views

Wave equation - initial displacement is box function

Published on 22 Mar 2026 - 16:14

51

Views

Understand finite discretisation with and without eliminating boundary conditions.

Published on 30 Jan 2018 - 15:14

109

Views

Question involving implicit functions and PDE

Published on 30 Mar 2026 - 0:29

58

Views

What does $u^{[k]}$ mean here?

Published on 30 Jan 2018 - 16:48

179

Views

Compute the condition number of the matrix $A^h$ is the $2$-norm.

Published on 26 Mar 2026 - 1:03

List Question

Prove $\phi \in L_{loc}^1(\Re ^3)$ but $\phi \notin L^1(\Re ^3)$ for Poisson's Fundamental Solution in $\Re ^3$

Show that if $\phi \in L^1(\mathbf R)$ and $f \in C_c(\mathbf R)$ then the convolution $\phi * f \in L^\infty(\mathbf R)$

Existence of solution for the modified heat equation

confusion on a definition of Genus

Show that u is harmonic

Dimension of solutions of EDP

Multi-variable chain rule - confusion in application

Over specification of boundary conditions on closed surfaces for Poisson's equation

Does this entangled PDE capture the derivative?

question about pde

Wave equation - initial displacement is box function

Understand finite discretisation with and without eliminating boundary conditions.

Question involving implicit functions and PDE

What does $u^{[k]}$ mean here?

Compute the condition number of the matrix $A^h$ is the $2$-norm.

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