Photo of Dr Gihan Marasingha

Dr Gihan Marasingha

Senior Lecturer (Education and Scholarship)


Telephone: 01392 723632

Extension: (Streatham) 3632

Teaching, Learning, and Outreach

Gihan received his doctorate from the University of Oxford in 2005.  After this, he held a teaching position at the University of Oxford and a 3-year research fellowship at the University of Bristol.  He joined the University of Exeter in October 2011 and has lectured at every level, ranging from large first year calculus lectures to small and specialised lectures in algebraic number theory.

In a student support role, Gihan founded and co-ordinates the Peer Assisted Learning Scheme in Mathematics, in which senior undergraduates guide and support the learning of first year students.  This successful scheme is now entering its third year.

Gihan is the Academic Lead for widening participation and outreach for the College of Engineering, Mathematics, and Physical Sciences.  He works closely with the new Exeter Mathematics School, helping to shape its curriculum and outreach policy.

In May 2014, Gihan won Best Lecturer at the Exeter Students' Guild Teaching Awards.

Scholarship and Research

His research focus is in analytic number theory, a subject intimately connected to the study of prime numbers.  Much of his work has been directed at proving results concerning the density of almost-primes in sequences of numbers.  He also investigates problems at the interface between analytic number theory and arithmetic geometry.

  • S. Baier, T. D. Browning, G. Marasingha, L. Zhao, Averages of shifted convolutions of d3(n), Proceedings of the Edinburgh Mathematical Society (2) 55 (2012), no 3, 551-576
  • Gihan Marasingha, Almost primes represented by binary forms, Journal of the London Mathematical Society, (2) 82 (2010), 295-316

In a scholarly role, Gihan explores the nature of 'creative teaching', especially as it applies to STEM subjects.  In particular, he places value on the co-creation of knowledge, treating students as partners in the learning process.