Re: PDE
- To: mathgroup at smc.vnet.net
- Subject: [mg35297] Re: PDE
- From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
- Date: Sat, 6 Jul 2002 06:10:22 -0400 (EDT)
- Organization: Universitaet Leipzig
- References: <ag3euo$73u$1@smc.vnet.net>
- Reply-to: kuska at informatik.uni-leipzig.de
- Sender: owner-wri-mathgroup at wolfram.com
Hi,
no but ist is easy by hand -- use the eigenfunctions
Sin[k Pi x/L]*Sin[m Pi y/L]
and the eigenvalues
k^2 Pi^2/L^2 + m^2 Pi^2/L^2
and use the Fourier series. That's the simplest example
in standard text books about PDE's. You don't need a
computer algebra
for that.
Regards
Jens
mitja Lakner wrote:
>
> Is there any package for solving eigenvalue problem for the Laplacian operator
> on the 2D (not rectangular) region with zero boundary value?
>
> f_{xx}+f_{yy}= t f
>
> Mitja Lakner