Dr Tyler Kelly PhD

Dr Tyler Kelly

School of Mathematics
Reader in Geometry
Head of Geometry and Mathematical Physics
UKRI Future Leaders Fellow

Contact details

School of Mathematics
Watson Building
University of Birmingham
B15 2TT

Dr Kelly is an algebraic geometer, specializing in its interactions in mathematical physics and mirror symmetry. As a member of the Geometry and Mathematical Physics group at the University of Birmingham, he conducts research that provides new geometrical insights in problems that arise from physical questions and discoveries. Dr Kelly has broad research interests centred around mirror symmetry, a mathematical duality linking algebraic geometry and symplectic geometry originating from ideas in string theory. 

Dr Kelly is a UKRI Future Leaders Fellow and is currently funded by an Engineering and Physical Science Research Council (EPSRC) New Investigator Award. Kelly's research has been funded in the past by both a National Science Foundation Mathematical Sciences Postdoctoral Fellowship from the USA and an EPSRC Postdoctoral Fellowship.

Personal website


  • PhD in Mathematics at University of Pennsylvania, 2014
  • MA in Mathematics at University of Georgia, 2009
  • BS in Mathematics at University of Georgia, 2009
  • AB in Romance Languages at University of Georgia, 2009


Originally from the United States, Tyler Kelly graduated with two Bachelor’s degrees and a Master’s degree from the University of Georgia in 2009. Afterwards, Dr. Kelly moved to Philadelphia and obtained a PhD in 2014 under the supervision of Prof. Ron Donagi at the University of Pennsylvania.

At the end of the PhD, Kelly won a National Science Foundation (NSF) Postdoctoral Fellowship, which led to the University of Cambridge where Kelly spent four years, first as an NSF Fellow but then also as an EPSRC Research Fellow. While at Cambridge, Kelly was a research fellow at Homerton College, and now is an associate fellow at Homerton.

Kelly joined Birmingham in September 2018 as part of the new Geometry and Mathematical Physics group, and became a UKRI Future Leaders Fellow in 2020. 

Dr Kelly is a Fellow of the Higher Education Academy. At the University of Pennsylvania, Kelly earned a graduate certificate in teaching in higher education while winning the Dean’s Award for Distinguished Teaching by a Graduate Student.

Postgraduate supervision

Dr. Kelly currently supervises two PhD students. Typically, Kelly supervises students in algebraic geometry on problems that originate from mirror symmetry or mathematical physics.


Research Themes

  • Algebraic Geometry
  • Mirror Symmetry
  • Landau-Ginzburg Models
  • Toric Geometry
  • Zeta Functions
  • Calabi-Yau varieties

Research Activity

Dr Kelly’s research surrounds mirror symmetry. Mirror symmetry is a duality in geometry that links algebraic geometry and symplectic geometry. Dr Kelly’s research primarily is focused on the question of finding a corresponding space W to a symplectic object M so that the symplectic geometry of M is encoded in the algebraic geometry W.  Dr Kelly studies this in multiple ways, each having various other implications.

Dr Kelly is interested in derived categories both in the context of mirror symmetry but also for understanding algebraic varieties themselves. Previous work includes using derived categories to link various complete intersections in toric varieties. Dr Kelly researches Landau-Ginzburg models, an object with origins from string theory whose applications are just now becoming fully realized mathematically. Despite the complicated name, Landau-Ginzburg models are quite concrete as a structure, though their usage is a bit contextual. Dr Kelly analyzes their enumerative and derived properties. Dr Kelly also studies in the geometry and arithmetic of Calabi-Yau varieties as well as toric varieties.

Other activities

Member of the London Mathematical Society's Women and Diversity in Mathematics Committee

Local Organisation Lead for the 2020 LGBT STEMinar, held at the University of Birmingham

Staff Advisor for oSTEM (out in Science, Technology, Engineering, and Mathematics) University of Birmingham Student Chapter

External examiner for the Pure Mathematics courses for another university.


  • N. Ilten, T. L. Kelly. Fano Schemes of Complete Intersections in Toric Varieties. Mathematische Zeitschrift 300 (2022) 1529-1556.

  • D. Favero, D. Kaplan, T. L. Kelly. A maximally-graded invertible cubic threefold that does not admit a full exceptional collection of line bundles. Forum of Mathematics, Sigma 8 (2020), Paper No. e56, 8pp.
  • C. Doran. T. L. Kelly, A. Salerno, S. Sperber, J. Voight, U. Whitcher. Hypergeometric decomposition of symmetric K3 quartic pencils. Research in the Mathematical Sciences 7, 7 (2020), 81 pages.
  • D. Favero, T. L. Kelly. Derived categories of BHK mirrors. Advances in Mathematics 352 (2019) 943–980.
  • C. Doran. T. L. Kelly, A. Salerno, S. Sperber, J. Voight, U. Whitcher. Zeta Functions on Alternate Mirror Calabi-Yau Families. Israel Journal of Mathematics 228 (2018), no. 2, 665-705.
  • D. Favero, T.L. Kelly. Fractional Calabi-Yau Categories from Landau-Ginzburg Models. Algebraic Geometry (Foundation Compositio) 5 (2018) no. 5, 596–649.
  • C. Doran, D. Favero, T. L. Kelly. Equivalences of Families of Stacky Toric Calabi-Yau Hypersurfaces. Proceedings of the American Mathematical Society 146 (2018), no. 11, 4633-4637.
  • D. Favero, T. L. Kelly. Proof of a conjecture of Batyrev and Nill. Amer. J. Math., 139 no. 6 (2017), 1493-1520.
  • T. L. Kelly. Picard ranks of K3 surfaces of BHK Type. Fields Institute Monographs, Calabi-Yau Varieties: Arithmetic, Geometry and Physics, 34 (2015), 45-63.
  • T. L. Kelly. Berglund-Hubsch-Krawitz Mirrors via Shioda Maps, Adv. Theor. Math. Phys., 17 no. 6 (2013) 1425-1449.
  • G. Bini, B. van Geemen, T. L. Kelly. Mirror Quintics, Discrete Symmetries, and Shioda Maps. J. Algebraic Geom., 21 (2012), 401-412.