Abstract
This paper is concerned with the criteria of the three cases for non-self-adjoint singular Sturm-Liouville difference equations. It has been known that this class of equations was classified into cases I, II and III by R.H. Wilson (Proc. R. Soc. A 401 (2005)). In this paper, several criteria of the cases I, II and III are established, respectively.
Acknowledgements
This research was supported by the NNSF of Shandong Province (Grant Y2008A02).