Re: Sturm-Liouville Problem (differential equation eigenvalue problem)
- To: mathgroup at smc.vnet.net
- Subject: [mg21913] Re: Sturm-Liouville Problem (differential equation eigenvalue problem)
- From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
- Date: Fri, 4 Feb 2000 02:54:43 -0500 (EST)
- Organization: Universitaet Leipzig
- References: <86r7p8$ba0@smc.vnet.net> <8710uh$a6b$6@dragonfly.wolfram.com> <87b03a$o2f@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Hi, why not ? v[x]==u[x]+va+(vb-va)*(x-x0)/(xe-x0) It changes the form of differential equationfor v[x] thats right, but it is more important to have homogen boundary conditions. You can still try other functions when the transformed differential equation becomes easyer. Regards Jens Andrew wrote: > > Jens-Peer Kuska <kuska at informatik.uni-leipzig.de> wrote in message > news:8710uh$a6b$6 at dragonfly.wolfram.com... > > Hi Andrew, > > > > a) if you have inhomogen boundary conditions like > > u[a]=va and u[b]=vb you *must* transform the > > equation to get homogen boundary conditions > > Otherwise you can't determine the eigenvalue. > > Who know the method of the *transformation* > Y=u(x) + Kx + K0 can not work, right?