From his textbook “Evolutionary Dynamics: Exploring The Equations of Life.” In the last sentence of the preface, after a couple dozen acknowledgements that are literally just a list of names, he has one last special thanks that gets its own paragraph:
“I thank Jeffrey Epstein for many ideas and for letting me participate in his passionate pursuit of knowledge in all its forms”
Email Source: EFTA00984937
Harvard Places Math Professor Martin Nowak on Paid Administrative Leave Over Epstein Ties: https://www.thecrimson.com/article/2026/2/25/nowak-leave-epstein/
That would be more true if he met Epstein couple times but this guy seemingly was very close with him. At this point he should be considered a collaborator in his crimes.