Professor Stevens is the founder and Director of PROMYS Europe. He has been Director of PROMYS at Boston University since he co-founded the program in 1989. He is Professor of Mathematics at Boston University where he has taught and conducted research since 1984. Professor Stevens earned his Ph.D. in Mathematics from Harvard University in 1981. His research specialties are Number Theory, Automorphic Forms, and Arithmetic Geometry. He has authored or edited three books and published numerous articles on these topics.

Professor Stevens has organized two major research conferences including the Conference on Modular Forms and Fermat's Last Theorem held at Boston University in 1995. Glennfest, a Conference on p-adic Variation in Number Theory, was held at Boston University on 2-6 June, 2014 to celebrate Professor Stevens' 60th Birthday.

Professor Stevens is the Director of PROMYS for Teachers, which he founded in 1990 for mathematics teachers of all levels of experience. He is Principal Investigator of the NSF-funded Focus on Mathematics Math and Science Partnership and co-Principal Investigator of the NSF Noyce grant, Math for America Boston: Teaching Scholars Program. In 2010, the Massachusetts Commissioner of Elementary and Secondary Education appointed Professor Stevens Chair of the Common Core Mathematics Review Board. He is also President of Math for America-Boston and Treasurer of the PROMYS Foundation.

Professor Cohn is a senior principal researcher and one of three founding members at Microsoft Research New England in Cambridge, Massachusetts, as well as an adjunct professor of mathematics at MIT. He received his Ph.D. in mathematics from Harvard in 2000 under the supervision of Noam Elkies.

Professor Cohn’s mathematical research interests are in discrete mathematics, including discrete geometry, coding theory, cryptography, combinatorics, computational number theory, and theoretical computer science.

Professor Cohn was a student at PROMYS in 1990. He returned as a junior counsellor in 1991 and was a counsellor in 1992, 1993, 1994, 1995, and 1996, when he was head counsellor. Over the years, Professor Cohn has repeatedly returned to PROMYS as an instructor, research mentor, and guest lecturer. In 2011, he co-founded the PROMYS Foundation to support PROMYS and its mission to nurture mathematical talent. Professor Cohn participated in the week-long Oxford Masterclasses in 2014 and delivered a guest lecture to the CMI-PROMYS Scholars.

Professor Cohn and Professor Stevens share the teaching of the daily Number Theory lectures at PROMYS Europe.

Professor Cohn’s research papers.

Vicky is the Whitehead Lecturer at the Mathematical Institute and Supernumerary Fellow at Balliol College, University of Oxford. Vicky divides her time between teaching undergraduates and working on outreach and public engagement with maths. She has taken part in several BBC radio and television programmes, gives many public lectures and leads many workshops for school students, and works with colleagues in Oxford and beyond on a range of outreach projects. Her first book, *Closing the Gap: the quest to understand prime numbers*, was published by Oxford University Press in October 2017.

Before coming to teach at the University of Oxford, Vicky was a Senior Teaching Associate in the Department of Pure Mathematics and Mathematical Statistics at the University of Cambridge, and she was also a Fellow and Director of Studies in Mathematics at Murray Edwards College, University of Cambridge. She did her PhD at Trinity College, Cambridge; her research was in additive number theory, under the supervision of Professor Ben Green.

Vicky has been involved with PROMYS Europe since the first summer programme in 2015.