Finding eigenvalue energy between two spheres

1. Jan 30, 2016

morteza65

1. The problem statement, all variables and given/known data

there are two spheres with radius a and b that b > a.they don't have the same center and the distance between their centers is d . how can I find eigenvalue and eigenfunction of energy spacing between two spheres.... I don't have any idea. please help me .
2. Relevant equations

3. The attempt at a solution

2. Jan 30, 2016

ChrisVer

Is that a question? what is there between the spheres??