We analyze a model proposed recently for the calculation of the energy of an exciton in a quantum dot and show that the authors made a serious mistake in the solution to the Schr\"{o}dinger equation.
A calculation with a bi-orthogonal wavelet transformation
Calculation of some determinants using the s-shifted factorial
On the Spectrum of a Quantum Dot with Impurity in the Lobachevsky Plane
![QR code for arXiv:0911.3311 [math-ph]](http://oss.arxitics.com/images/favicon.svg)