School of Mathematical Sciences
Queen Mary University of London
Maths Building - Office [only plausible Mersenne prime]
327 Mile End Rd, London E1 4NS
Pronouns: they/he
Email: t.l.kelly[obvious symbol]qmul.ac.uk
I am a Professor of Pure Mathematics in the Centre for Combinatorics, Algebra, and Number Theory (CeCANT) at Queen Mary University of London. My research is in algebraic geometry and mirror symmetry. My research group is currently supported by a UKRI Future Leaders Fellowship and an EPSRC Small Grant.
I also hold an honorary professorship at the University of Birmingham and serve as an Associate Fellow at Homerton College, Cambridge.
Mathematical Papers and Preprints
Hypergeometric Motives from Euler Integral Representations (with John Voight), 26 pages.
Toric Exoflops and Categorical Resolutions, (with Aimeric Malter), 27 pages.
Open FJRW theory and mirror symmetry, (with Mark Gross and Ran Tessler), 140 pages.
Genus-zero r-spin theory, (with Renzo Cavalieri and Rob Silversmith), Moduli 1 e7 (2024) 1-35.
Mirror symmetry for open r-spin invariants, (with Mark Gross and Ran Tessler), Pure and Applied Mathematics Quarterly 20, no 2 (2024) 1005-1024.
Exceptional Collections for Mirrors of Invertible Polynomials, (with David Favero and Daniel Kaplan), Mathematische Zeitschrift 304, 32 (2023) 16 pages.
Fano Schemes of Complete Intersections in Toric Varieties, (with Nathan Ilten), Mathematische Zeitschrift 300 (2022), 1529-1556.
A maximally-graded invertible cubic threefold that does not admit a full exceptional collection of line bundles, (with David Favero and Daniel Kaplan), Forum of Math, Sigma, volume 8, edition 56 (2020), 1-8.
Hypergeometric decomposition of symmetric K3 quartic pencils, (with Charles F. Doran, Adriana Salerno, Steven Sperber, John Voight, and Ursula Whitcher), Research in the Mathematical Sciences 7, 7 (2020), 81 pages.
Derived Categories of BHK Mirrors, (with David Favero), Advances in Mathematics 352 (2019), 943-980.
Alternate mirror families and hypergeometric motives, (with Charles F. Doran, Adriana Salerno, Steven Sperber, John Voight, and Ursula Whitcher), 2017 MATRIX Annals, eds. David R. Wood, Jan de Gier, Cheryl E. Praeger, and Terence Tao, MATRIX Book Series 2 (2019), 441-448.
Zeta functions of alternate mirror Calabi-Yau families, (with Charles F. Doran, Adriana Salerno, Steven Sperber, John Voight, and Ursula Whitcher), Israel Journal of Mathematics 228 no. 2 (2018), 665-705.
Fractional Calabi-Yau Categories from Landau-Ginzburg Models, (with David Favero), Algebraic Geometry 5 no. 5 (2018), 596-649.
Equivalences of Families of Stacky Toric Calabi-Yau Hypersurfaces, (with Charles F. Doran and David Favero), Proceedings of the American Mathematical Society 146 (2018), 4633-4647.
Proof of a Conjecture of Batyrev and Nill, (with David Favero), American Journal of Mathematics 139 no. 6 (2017), 1493-1520.
Picard Ranks of K3 Surfaces of BHK Type, Fields Institute Monographs, Calabi-Yau Varieties: Arithmetic, Geometry and Physics 34 (2015), 45-63.
Berglund-Hubsch-Krawitz Mirrors via Shioda Maps, Advances in Theoretical and Mathematical Physics, 17 no. 6 (2013), 1425-1449.
Mirror Quintics, discrete symmetries and Shioda Maps (with Gilberto Bini and Bert van Geemen) Journal of Algebraic Geometry, 21 (2012), 401-412.
On Kostant's Theorem for Lie Algebra Cohomology (with UGA VIGRE Algebra Group), Contemporary Mathematics, 478 (2008), 39-60.
Other Publications:
Best practice for LGBTQ+ data collection by professional organizations (with A. Bond), Nature 626, 261 (2024).
Supplementary resource: A quick guide to data collection for LGBTQ+ characteristics (with A. Bond), figshare.
Research Support
My research over my career has been supported through the following national grants:
2025-2028: UKRI Future Leaders Fellowship, Renewal MR/Y033841/1
2024-2025: EPSRC Small Grant EP/Y033574/1 (joint with Dan Kaplan)
2020-2025: UKRI Future Leaders Fellowship MR/T01783X/1
2019-2022: EPSRC New Investigator Award EP/S03062X/1
2015-2019: EPSRC Research Fellowship - Postdoctoral EP/N004922/1
2014-2018: NSF Mathematical Science Postdoctoral Research Fellowship DMS-1401446
2009-2014: NSF Graduate Research Fellowship
I have supervised the following Postdocs:
Joshua Westerman (Oct 2024 - Mar 2025)
Qaasim Shafi (Sept 2022-Aug 2024)
Shengyuan Huang (Sept 2021-Sept 2024)
Dan Kaplan (Jan 2020-Dec 2021, Jan 2025-present)
I have supervised the following PhD students:
Thais Gomes Ribeiro (2023-present)
Rob Maher (2020-2024)
Aimeric Malter (2019-2023)
Conference for Algebraic Geometry via Eurostar (CAGE) - September 17-19, 2025, Leiden University
Ignacio Barros, Márton Hablicsek, Vlerë Mehmeti, and I are organising a conference to build a sustainable international research network united by high-speed rail. We view this as a first step to make more green collaborations in mathematics. Please come (by train, mind).
Mirrors in the Midlands 2024 - August 6-9, 2024
Shengyuan Huang, Qaasim Shafi and I co-organised the 2024 installment of Mirrors in the Midlands.
Spec(\overline{\mathbb{Q}[2πi]}) - June 24-27, 2024.
Renzo Cavalieri, Melody Chan, Jared Weinstein and I co-organised the "extension" of Spec(\overline{\mathbb Q}). This conference is designed to celebrate and promote research advances of LGBT2Q mathematicians in algebraic geometry, arithmetic geometry, commutative algebra and number theory at the Fields Institute.
COW meets EAGLE - February 2-3 2023
Michel van Garrel, Anne-Sophie Kaloghiros, Timothy Logvinenko, Alan Thompson and I are co-orgnised a conference on enumerative algebraic geometry at the University of Birmingham. This is in part to celebrate the lectureship of Michel van Garrel at Birmingham.
Spec(\overline{\mathbb Q}) - July 6-8, 2022
Juliette Bruce, Renzo Cavalieri, John Voight and I are co-organised a conference to celebrate and promote research advances of LGBT2Q mathematicians in algebraic geometry, arithmetic geometry, commutative algebra and number theory at the Fields Institute.
Geometry of Gauged Linear Sigma Models - June 21-24, 2022
Ed Segal, Shengyuan Huang and I are co-organised a conference on the Geometry of Gauged Linear Sigma Models at the University of Birmingham.
LGBT STEMinar 2020 - 10 January 2020
I was the local organisational lead for the LGBT STEMinar 2020, which we hosted at the University of Birmingham. It was the biggest yet, with 250 attendees! Check out LGBTQ+ STEMinar website for further events.
Undergraduate Summer School on Homological Algebra of Mirror Symmetry - July 29 - August 2, 2019.
Ursula Whitcher and I organised the undergraduate summer school for the Fields Institute's Thematic Program on the Homological Algebra of Mirror Symmetry.
Mirrors in the Midlands 2019 - April 1-3, 2019
Andrea Brini and I organised this conference at Birmingham.
With Alex Bond, I am a co-chair of the LGBTQ+ STEM Project which runs the LGBTQ+ STEMinar, the largest event in the UK for researchers in STEM.
I currently serve on the following committees/boards:
The Women and Diversity in Mathematics committee for the London Mathematical Society.
The Academy for the Mathematical Sciences Advisory Team (EDI Workstream)
Please get in contact regarding this work if you are interested or have any questions with respect to reducing the gender gap or broader diversity issues in mathematics.
Lastly, I was the Staff Advisor for the University of Birmingham's oSTEM (out in Science Technology Engineering and Mathematics) organisation, the longest continuously running oSTEM chapter in the UK. They are an inspiring group of students and have won multiple university awards. Their annual event STEM LGBTQ and You was on the Guardian's list of top ten places to celebrate LGBTQ+ History Month in 2023.
At present, I rarely have time for additional pro bono inclusion work unless an organisation has a proven track record in identifying and implementing effective change for people with protected characteristics. If, however, your organisation is looking to make a step change in your inclusion efforts and you are looking for consultancy with someone doing LGBTQ+ inclusion in Higher Education since 2007 with an expertise in STEM, then you are more than welcome to inquire about my rates via email.