Chebyshev type lattice path weight polynomials by a constant term method
R Brak, J Osborn
Journal of Physics A - Mathematical and Theoretical | IOP PUBLISHING LTD | Published : 2009
Financial support from the Australian Research Council is gratefully acknowledged. One of the authors, JO, thanks the Graduate School of The University of Melbourne for an Australian Postgraduate Award and the Centre of Excellence for the Mathematics and Statistics of Complex Systems (MASCOS) for additional financial support. The authors would also very much like to thank Ira Gessel for some useful insights and in particular to drawing our attention to the Jacobi and Goulden and Jackson reference  used in the proof in section 5.