Snm. Ruijsenaars, Reflectionless analytic difference operators (A Delta Os): Examples, open questions and conjectures, J NONL M PH, 8, 2001, pp. 240-248
We present a scenario concerning the existence of a large class of reflecti
onless selfadjoint analytic difference operators, In order to exemplify thi
s scenario, we summarize our results on reflectionless self-adjoint differe
nce operators of relativistic Calogero-Moser type.