My name is Winston Spencer Leslie, but I always go by my middle name, Spencer. I am an Associate Professor at Boston College. I am currently funded by a Alfred P. Sloan Fellowship and NSF CAREER grant DMS-2440741 (2025-2030).

During the academic year 2026-2027, I will be at the IAS as a Von Neumann Fellow.

I am interested in representation theory, with emphases in automorphic, p-adic, and geometric representation theory. In particular, I enjoy thinking about:

  • Automorphic representations of reductive groups or their covers
  • Relative trace formulas and the corresponding local harmonic analysis
  • Generalizations of the Hitchin Fibration, orbital integrals, and all that
  • Fourier coefficients and Whittaker functions

Before joining the department as faculty, I was a graduate student here at Boston College under the supervision of Solomon Friedberg, graduating in May 2018. Between stints at BC, I was fortunate enough to have Jayce R. Getz as my postdoctoral advisor at Duke University. The idea that there should be a robust theory of endoscopy in the relative setting is really due to Jayce.

Graduate students:

  • Siddharth Mahendraker (May 2026), jointly advised with Sol Friedberg, The relative trace formula for the Galois period on SL(2)
  • Yuzheng Yan (expected 2028)

If you are a graduate student potentially interested in working with me, please send me an email. I am happy to chat. Even though I am away this next year, I am absolutely available to meet virtually.

Click here for my CV (updated: July 2025)

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Here is a photo of my wife and me from our wedding day!

Contact Info

Department of Mathematics, Boston College
Maloney Hall
Chestnut Hill, MA 02467
USA
Email:  spencer.leslie[at]bc[dot]edu
Office: Maloney 543