Abstract
I describe the problem in its original form, talk about possible variants of it, describe some results, and then indicate the role of the bispectral problem as a discovery tool in unknown territory.
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Grunbaum, F.A. (2001). The Bispectral Problem: An Overview. In: Bustoz, J., Ismail, M.E.H., Suslov, S.K. (eds) Special Functions 2000: Current Perspective and Future Directions. NATO Science Series, vol 30. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-0818-1_6
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