Is pica in the spectrum of obsessive-compulsive disorders?

Gundogar D., Demir S., Eren İ.

GENERAL HOSPITAL PSYCHIATRY, vol.25, no.4, pp.293-294, 2003 (SCI-Expanded) identifier identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 25 Issue: 4
  • Publication Date: 2003
  • Doi Number: 10.1016/s0163-8343(03)00039-2
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Social Sciences Citation Index (SSCI), Scopus
  • Page Numbers: pp.293-294
  • Süleyman Demirel University Affiliated: Yes


We obtain a class of exact solutions of a Bessel-type differential equation, which is a six-parameter linear ordinary differential equation of the second order with irregular (essential) singularity at the origin. The solutions are obtained using the Tridiagonal Representation Approach (TRA) as bounded series of square integrable functions written in terms of the Bessel polynomial on the real line. The expansion coefficients of the series are orthogonal polynomials in the equation parameters space. We use our findings to obtain solutions of the Schr\"odinger equation for some novel potential functions.