Annual Review 2019 | 2020
Annual Review | October 2019 – September 2020 Heilbronn Institute for Mathematical Research www.heilbronn.ac.uk
CONTENTS Chair’s Report 1 Relationships 3 Research 4 Events 5 Personnel 7 Organisation 9
APPENDICES
R1 Highlighted Papers 11 R2 Complete List of Papers 15 E1 Heilbronn Events 28 E2 Sponsored Events 33 E3 Focused Research Events 43 E4 Future Events 50 P1 Fellows Joining since September 2019 59 P2 Fellows Leaving since September 2019 62 P3 Fellows Moving with Extensions 64 P4 Fellows Joining in October 2020 65 M1 Career Development 68
Chair’s Report
The Heilbronn Institute has, notwithstanding the challenges of the pandemic, enjoyed a remarkable and successful year as a national institute for mathematical research. It is commonly said that mathematicians need only pen, paper, and an internet connection to do their work. The pandemic has put the members of HIMR to the test, and the scientific outcomes have been very strong, achieved sometimes in difficult conditions. The external events and activities of HIMR have continued whenever possible, and the Institute’s mathematical output has been distinguished by its impact and breadth.
This has been a big year for the Heilbronn Institute—our first complete year in an extensive suite of rooms within the newly renovated Fry Building of Bristol University, in cohabitation with the School of Mathematics; a change of leadership on both internal and external work; and then the challenges posed across the UK by the restricted working and living conditions of the COVID‐19 pandemic. Members of the Institute have responded bravely and constructively to the ensuing changes in their environments, and HIMR is strengthened by a deepened feeling of shared commitment to excellence in mathematics.
Our new accommodation in Bristol allows our organizational staff, for the first time, room to breathe. The hospitality of the University and School is gratefully acknowledged in this regard. We hope to be able to welcome all HIMR members on visits to Bristol in the near future.
Annual Review | October 2019 – September 2020 Heilbronn Institute for Mathematical Research www.heilbronn.ac.uk Page|1
The changes in leadership mark a progression for HIMR. Jon Keating’s successful and dynamic tenure as Chair has seen the evolution of its external activities into a mature operation that looks both within, to its Fellows and Students, and outwith, across the entirety of the UK mathematics community. The new Heilbronn Doctoral Partnership has accepted its first intake of 9 students, and our eyes are turning towards other cohorts of mathematicians including those studying at schools and on undergraduate courses. In addition, Daniel Shiu has retired from the Headship of HIMR after four successful years in post.
We are especially concerned with issues around diversity. Our recent successes in hiring women to fellowships and studentships have been substantial, and our efforts will be intensified. The Heilbronn Doctoral Partnership aids our potential to attract women into the academic system who may not otherwise present themselves. While women are under‐ represented in mathematical research, the situation with other under‐represented groups is more extreme, and we will support initiatives across the UK that tend towards increasing diversity in mathematical science.
A major event of our year is the January appointment process. We made 14 appointments this year (including 3 women) to Heilbronn Research Fellowships (HRF). Since September 2019, 9 former Fellows have left HIMR, 8 for academic positions and 1 for industry. Details may be found in Appendix P2.
Annual Review | October 2019 – September 2020 Heilbronn Institute for Mathematical Research www.heilbronn.ac.uk Page|2
Relationships
HIMR works closely with other major UK and international mathematics research institutes and organisations, including the American Institute of Mathematics, the Alan Turing Institute, the Clay Mathematics Institute, the International Centre for Mathematical Sciences, the Isaac Newton Institute, and the London Mathematical Society.
We continue to run workshops with the Alan Turing Institute and to provide support for workshops at the ICMS in Edinburgh and the Isaac Newton Institute in Cambridge.
Last year we entered into partnership with the Clay Mathematics Institute to establish a major new series of Postgraduate Summer Schools. Within this partnership, we provide support for two UK participants on the PROMYS Europe programme for highly gifted pre‐ university mathematicians.
HIMR plays a leading role in the ‘STEM for Britain’ poster competition and exhibition that aims to encourage, support and promote Britain’s early‐career researchers in Mathematics in Parliament and elsewhere.
Annual Review | October 2019 – September 2020 Heilbronn Institute for Mathematical Research www.heilbronn.ac.uk Page|3
Research
One of the primary aims of the Heilbronn Institute is to support the external research of its members by providing a stimulating environment offering opportunities for collaboration and personal development. We attract excellent mathematicians and support them in carrying out excellent research. A natural measure of the Institute’s performance in relation to this goal is the quality of the papers produced by its members.
In October 2020, members of the Institute submitted reports (37 in all) on their external research. They were invited to list papers produced in the twelve‐month period from October 2019, to identify which of these papers they considered their best, giving reasons for their choice, and to list papers appearing in print during this period. The papers identified by members as their best are listed in Appendix R1, and the complete set of papers may be found in Appendix R2.
HIMR’s publications find homes in mathematical journals including many of the highest ranked. Mention is made of two papers, in algebra and dynamical systems respectively, written by current fellows that have appeared recently in Inventiones Mathematicae.
Classified work at HIMR is proving a rich and popular source of high‐quality impact cases for submission to the 2020 Research Excellence Framework. There are about 18 HIMR cases under consideration for 12 UK universities.
COVID‐19 has inspired members of HIMR to harness their science to good cause. They participated in a COVID working group hosted by the Isaac Newton Institute, and contributed to modelling for the Cabinet Office.
Annual Review | October 2019 – September 2020 Heilbronn Institute for Mathematical Research www.heilbronn.ac.uk Page|4
Events
A series of research events is offered throughout the year under the auspices of the Heilbronn Institute. These include the two‐day Annual Conference and several workshops, meetings and working groups. These events are of a high quality, and attract leading mathematicians from around the world. They contribute significantly to the research environment and reputation of the Institute.
The regular Heilbronn Colloquia were a lively source of inspiration and discussion, until their forced postponement from around mid‐March. A series of frequent events in Data Science took place between October 2019 and March 2020, namely 7 seminars and a workshop on hypocoercivity.
Mention is made of the one‐day meeting in February in memory of Elmer Rees, Founding Director of HIMR. Elmer was a leading individual in geometry and topology, who spent much of his career in Oxford and Edinburgh before moving to Bristol. He was greatly respected and loved by those close to him, and his friends enjoyed his company and his unpretentious sense of humour.
Sadly, all events scheduled for mid‐March and later had to be postponed, including Amie Wilkinson’s planned Distinguished Lecture Series.
Annual Review | October 2019 – September 2020 Heilbronn Institute for Mathematical Research www.heilbronn.ac.uk Page|5
HIMR has entered into an agreement with the Clay Mathematics Institute to jointly sponsor a series of Postgraduate Summer Schools. The first of these took place last year in Bristol in the area of computational number theory and this year’s summer school took place online in July, on the topic of integrable probability. The third (on hyperbolic geometry/dynamics) is planned for two weeks in Bristol during June/July 2021.
Our 2020 flagship event was the Annual Conference, which took place remotely from 10–11 September. We were grateful to our eight speakers for their willingness to move their lectures online. Stimulating talks were given by Maria Chudnovsky (Princeton), Adam Harper (Warwick), Özlem Imamoglu (ETH Zurich), Kurt Johansson (KTH Royal Institute of Technology), Ailsa Keating (Cambridge), Hendrik Lenstra (Universiteit Leiden), Ulrike Tillmann (Oxford), and Ronald de Wolf (CWI & Universiteit van Amsterdam). When the questions dried up after Hendrik Lenstra’s closing lecture, he embarked upon his own quiz of the audience.
The Institute is proud to have been able to offer part funding for a large number of significant scientific events held across the UK. Details may be found in Appendix E2.
A distinctive element of HIMR’s research profile is its programme on Focused Research Events, of which we funded 14 during the year. Of these, 3 took place between October 2019 and January 2020 and 11 have been postponed until next year due to the COVID‐19 pandemic restrictions. These events, which are listed in Appendix E3, enable groups of researchers and students to gather and discuss topical problems in mathematics. The competition for funds is fairly fierce and HIMR was able to fund only about one half of the deserving applications that it received this year.
Annual Review | October 2019 – September 2020 Heilbronn Institute for Mathematical Research www.heilbronn.ac.uk Page|6
Personnel
Jon Keating resigned as Chair from 31 July 2020, following his 2019 election to the Sedleian Professorship of Natural Philosophy at Oxford University. He was succeeded on 1 September by the incoming Chair, Geoffrey Grimmett, Professor Emeritus of Mathematical Statistics at Cambridge University. Jon was instrumental in bringing HIMR to Bristol in 2005, and has been a guiding influence in the development of the now mature Institute.
Daniel Shiu retired on 31 March 2020 as Head of HIMR after four years in post, and has been succeeded by Michael Groves. The staff of HIMR wish Daniel and Jon all the very best in their future activities.
The January recruitment round was especially fruitful, with 14 appointments to Heilbronn Research Fellowships: 8 at Bristol (including 2 in Data Science), 3 at Manchester, and 1 each at Imperial, Kings, and University College(s), London. We currently have 3 Fellows in the area of Data Science in Bristol, in line with our strategy to expand in this area. The quality of the candidacy was very high, and the Appointments Committee felt that further worthy appointments could have been made given increased funds and space. Details of current Fellows can be found on the Institute’s website. A list of new Fellows since last September is given in Appendix P1.
There have been three appointments to Heilbronn Chairs within Bristol University: David Ellis (Combinatorics); Anthony Lee and Nick Whiteley (Data Science).
Annual Review | October 2019 – September 2020 Heilbronn Institute for Mathematical Research www.heilbronn.ac.uk Page|7
The Institute is working to secure the supply chain of mathematicians across the UK by supporting PhD students. We have currently 17 excellent students, of whom 9 are women. We are working with 4 Centres for Doctoral Training (2 students at University College London, 1 student in Bristol, 1 student in Lancaster, and 2 students in Cardiff). Within our new Heilbronn Doctoral Partnership, we have this year admitted 7 PhD students at Manchester, Oxford, and Bristol, in addition to 2 match‐funded students.
Annual Review | October 2019 – September 2020 Heilbronn Institute for Mathematical Research www.heilbronn.ac.uk Page|8
Organisation
The Heilbronn Institute is an expanding partnership between UK government and higher education. It has its main premises in Bristol where it began its life in 2005, as well as premises in Manchester and London. The Institute employs Fellows in these and several other universities, and funds PhD studentships more widely. It funds events and focused research activities across the UK. It coordinates research activities that bring some of most outstanding individuals worldwide into the UK for visits.
HIMR is a serious investor in people who are, or will become, active at a high level in aspects of mathematics. Until now it has been funded entirely by the UK government, with a lean management structure and low overhead costs.
The Chair of HIMR is advised on scientific matters by an External Advisory Board that meets once a year in September. The Board members for 2019–2020 are:
. Tim Dokchitser (Bristol) . Richard Jozsa (Cambridge) . Frances Kirwan (Oxford)
Annual Review | October 2019 – September 2020 Heilbronn Institute for Mathematical Research www.heilbronn.ac.uk Page|9
. David Loeffler (Warwick) . Michael Singer (UCL) . Toby Stafford (Manchester) . John Toland (Bath) . Michael Wemyss (Glasgow) . Julia Wolf (Cambridge)
The Associate Chair of HIMR, Tim Burness, is responsible for the management operations within Bristol and he contributes to the mentoring of Fellows across the UK. Mark Kambites in Manchester is the academic lead for the University’s relationship with the Heilbronn Institute. Mark is responsible for the management operations within Manchester and for monitoring Fellows’ research progress and academic career development. Heads of Departments hosting Fellows, Helen Wilson (UCL), Steven Gilmour (King’s College London), David Van Dyk (Imperial College London), and Mike Giles (Oxford) provide good support for the Fellows’ research directions and academic career plans, including the coordination of a dedicated mentoring programme for the Fellows based in their Departments.
The external research programme is supported by an administrative team based in Bristol, which makes outstanding contributions to the successes of the Institute. Staff members are currently:
. Chrystal Cherniwchan and Eleanor Machin, Heilbronn Managers . Francoise Blake, Events Officer . Lowri Jamieson and Chloe Biddle, Events Assistants . Abla Hatherell, Personal Assistant to the Chair
Annual Review | October 2019 – September 2020 Heilbronn Institute for Mathematical Research www.heilbronn.ac.uk Page|10
APPENDIX |R1 Highlighted Papers – 2019/2020
Dyadic Approximation in the Middle‐Third Cantor Set (2020). Demi Allen, Sam Chow, Han Yu. https://arxiv.org/abs/2005.09300
Isoperimetric stability in lattices (2020). Ben Barber, Joshua Erde, Peter Keevash, Alexander Roberts. https://arxiv.org/abs/2007.14457
Overconvergent Hilbert modular forms via perfectoid Hilbert modular varieties (2020). Christopher Birkbeck, Ben Heuer and Chris Williams. https://arxiv.org/abs/1902.03985
Compact Schur‐Weyl duality: real Lie groups and the cyclotomic Brauer algebra (2020). Kieran Calvert. https://arxiv.org/abs/2003.09319
Computing classical modular forms (2020). Jonathan Bober, Alex J. Best, Andrew R. Booker, Edgar Costa, John Cremona, Maarten Derickx, David Lowry‐Duda, Min Lee, David Roe, Andrew V. Sutherland, and John Voight. To appear in Arithmetic Geometry, Number Theory, and Computation in the Springer Series “Simons Symposia”. https://arxiv.org/abs/2002.04717
Rubel’s problem: from Hayman’s list to the Chabauty method. Edward Crane, Gene Kopp. Feature article in the London Mathematical Society newsletter, issue 492 (2021). View pdf
Global methods for the symplectic type of congruences between elliptic curves, provisionally (2020). John Cremona, Nuno Freitas. To appear in Revista Matemática Iberoamericana. https://arxiv.org/abs/1910.12290
Annual Review | October 2019 – September 2020 Heilbronn Institute for Mathematical Research www.heilbronn.ac.uk Page|11
Local and global densities for Weierstrass models of elliptic curves (preprint). John Cremona, Mohammad Sadek, submitted for publication. https://arxiv.org/abs/2003.08454
Exact p‐adic computation in Magma (2020). Christopher Doris, Journal of Symbolic Computation. https://arxiv.org/abs/2008.11063
Anosov flows, growth rates on covers and group extensions of subshifts (2020). Rhiannon Dougall, Richard Shar, Inventiones Mathematicae. https://doi.org/10.1007/s00222‐020‐00994‐3
Automorphic forms for some even unimodular lattices (2020). Neil Dummigan, Dan Fretwell. https://arxiv.org/abs/2003.08703
Annual Review | October 2019 – September 2020 Heilbronn Institute for Mathematical Research www.heilbronn.ac.uk Page|12
Circuit‐Difference Matroids (2020). George Drummond, Tara Fife, Kevin Grace, James Oxley. The Electronic Journal of Combinatorics, 27,3. https://doi.org/10.37236/9314
The spread of a finite group (2020). Timothy Burness, Robert M Guralnick, Scott Harper. https://arxiv.org/abs/2006.01421
Discrete restriction for (x,x3) and related topics (2019). Kevin Hughes, Trevor Wooley. https://arxiv.org/abs/1911.12262
Indefinite zeta functions (2020). Gene Kopp. https://arxiv.org/abs/1912.12364
Moduli of Langlands parameters (2020). Robert Kurinczuk, Jean‐François Dat, David Helm, Gil Moss. https://arxiv.org/abs/2009.06708
On the p‐width of finite simple groups (2020). Alex Malcolm. https://arxiv.org/abs/2003.00755
Flexible circuits in the d‐dimensional rigidity matroid (2020). Georg Grasegger, Hakan Guler, Bill Jackson, Anthony Nixon. https://arxiv.org/abs/2003.06648
Twisting moduli for GL(2), Benjamin Bedert, George Cooper, Thomas Oliver, Pengcheng Zhang. To appear in Journal of Number. https://arxiv.org/abs/2003.02557
Annual Review | October 2019 – September 2020 Heilbronn Institute for Mathematical Research www.heilbronn.ac.uk Page|13
Explicit coverings of families of elliptic surfaces by squares of curves (2020). Colin Ingalls, Adam Logan, Owen Patashnick. https://arxiv.org/abs/2009.07807
Decomposition algebras and axial algebras (2020). Tom De Medts, Simon Peacock, Sergey Shpectorovd, Michiel Van Couwenberghe, Journal of Algebra, 556, 287‐314. https://arxiv.org/abs/1905.03481
Translationally‐invariant universal quantum Hamiltonians in 1D (2020). Tamara Kohler, Stephen Piddock, Johannes Bausch, Toby Cubitt.https://arxiv.org/abs/2003.13753
Weight conjectures for ℓ‐compact groups and spetses (2020). Radha Kessar, Gunter Malle, Jason Semeraro. https://arxiv.org/abs/2008.07213
No additional tournaments are quasirandom‐forcing (2019). Robert Hancock, Adam Kabela, Daniel Kral, Taisa Martins, Roberto Parente, Fiona Skerman, Jan Volec. https://arxiv.org/abs/1912.04243
Face Posets of Tropical Polyhedra and Monomial Ideals (2019). Georg Loho, Ben Smith. https://arxiv.org/abs/1909.01236
Local and global applications of the Minimal Model Program for co‐rank one foliations on threefolds (2019), Calum Spicer, Roberto Svaldi. https://arxiv.org/abs/1908.05037
On the regular power structure of p‐groups and applications (2020). James Williams. https://arxiv.org/abs/2004.04610
Annual Review | October 2019 – September 2020 Heilbronn Institute for Mathematical Research www.heilbronn.ac.uk Page|14
APPENDIX |R2 Complete List of Papers – 2019/2020
Diophantine Approximation on Fractals: Hausdorff Measures of Shrinking Targets on Self‐ Conformal Sets (2019). Demi Allen, Balázs Bárány. https://arxiv.org/abs/1911.03410
Dyadic Approximation in the Middle‐Third Cantor Set (2020). Demi Allen, Sam Chow, Han Yu. https://arxiv.org/abs/2005.09300
Guiding Principles for Unlocking the Workforce: What Can Mathematics Tell Us? (2020). Demi Allen, Edward Crane, Christopher Doris, David Abrahams et al., working paper from ICMS/VKEMS Virtual Study Group: Mathematical Principles for Unlocking the Workforce. https://tinyurl.com/y2mdko5z
Isoperimetric stability in lattices (2020). Ben Barber, Joshua Erde, Peter Keevash and Alexander Roberts. https://arxiv.org/abs/2007.14457
Minimalist designs (2020). Ben Barber, Stefan Glock, Daniela Kühn, Alan Lo, Richard Montgomery, Deryk Osthus. Random Structures and Algorithms, 57, 47– 63. https://doi.org/10.1002/rsa.20915
Overconvergent Hilbert modular forms via perfectoid Hilbert modular varieties (2020). Christopher Birkbeck, Ben Heuer, Chris Williams. https://arxiv.org/abs/1902.03985
On the p‐adic Langlands correspondence for algebraic tori (2020). Chris Birkbeck, Journal de Théorie des Nombres de Bordeaux, 32, 1, 133‐158. https://arxiv.org/abs/1811.04819
Annual Review | October 2019 – September 2020 Heilbronn Institute for Mathematical Research www.heilbronn.ac.uk Page|15
2‐adic slopes of Hilbert modular forms over ℚ (√5) (2020). Chris Birkbeck, Bulletin of the. London Mathemathical Society, 52, 4, 716‐729. https://doi.org/10.1112/blms.12361
Local simple connectedness of boundaries of hyperbolic groups (2020). Benjamin Barrett. https://arxiv.org/abs/2004.11650
Compact Schur‐Weyl duality: real Lie groups and the cyclotomic Brauer algebra (2020). Kieran Calvert. https://arxiv.org/abs/2003.09319
Compact Schur‐Weyl duality and the affine type B/C Brauer algebras (2020). Kieran Calvert. https://arxiv.org/abs/1909.11428
Computing classical modular forms (2020). Jonathan Bober, Alex J. Best, Andrew R. Booker, Edgar Costa, John Cremona, Maarten Derickx, David Lowry‐Duda, Min Lee, David Roe, Andrew V. Sutherland, and John Voight. To appear Arithmetic Geometry, Number Theory, and Computation in the Springer Series “Simons Symposia”. https://arxiv.org/abs/2002.04717
Rubel’s problem: from Hayman’s list to the Chabauty method. Edward Crane, Gene Kopp. Feature article in the London Mathematical Society newsletter, issue 492 (2021). View pdf
Annual Review | October 2019 – September 2020 Heilbronn Institute for Mathematical Research www.heilbronn.ac.uk Page|16
Well‐posedness of the mean field forest fire age evolution equation (2020). Edward Crane. https://arxiv.org/abs/2007.05807
Unlocking Higher Education Spaces – What Might Mathematics Tell Us? (2020). Edward Crane, David Abraham, et.al., Virtual Forum for Knowledge Exchange in the Mathematical Sciences (V‐KEMS). https://tinyurl.com/yyhyxwwl
Global methods for the symplectic type of congruences between elliptic curves, provisionally (2020). John Cremona, Nuno Freitas. To appear in Revista Matemática Iberoamericana. https://arxiv.org/abs/1910.12290
Local and global densities for Weierstrass models of elliptic curves (preprint). John Cremona, Mohammad Sadek, submitted for publication. https://arxiv.org/abs/2003.08454
Sorting and labelling integral ideals in a number field (2020). John Cremona, Aurel Page, Andrew V Sutherland. https://arxiv.org/abs/2005.09491
The proportion of genus one curves over ℚ defined by a binary quartic that everywhere locally have a point, Manjul Bhargava, John Cremona and Tom Fisher. To appear in International Journal of Number Theory. https://arxiv.org/abs/2004.12085
Annual Review | October 2019 – September 2020 Heilbronn Institute for Mathematical Research www.heilbronn.ac.uk Page|17
ℚ ‐curves over odd degree number fields, submitted for publication (preprint). John Cremona, Filip Najman. https://arxiv.org/abs/2004.10054
Exact p‐adic computation in Magma (2020). Christopher Doris, Journal of Symbolic Computation. https://arxiv.org/abs/2008.11063
Computing the Galois group of a polynomial over a p‐adic field (2020). Christopher Doris. International Journal of Number Theory, 16, 08, 1767‐1801. https://arxiv.org/abs/2003.05834
Machine learning for protein folding (2019). Stephanie Seiermann, Christopher Doris, Misa Ogura, Amit Kumar Jaiswal, Sydney Vertigan, Qingfen Yu. Data Study Group Network. Final Report: Woolfson Laboratory. Output of the Alan Turing Institute Data Study Group (non‐ journal). http://doi.org/10.5281/zenodo.3877119
Anosov flows, growth rates on covers and group extensions of subshifts (2020). Rhiannon Dougall, Richard Shar, Inventiones Mathematicae. https://doi.org/10.1007/s00222‐020‐00994‐3
Automorphic forms for some even unimodular lattices (2020). Neil Dummigan, Dan Fretwell. https://arxiv.org/abs/2003.08703
Practical quantum computing: The value of local quantum computation (2020). James Cruise, Neil Gillespie, Brendan Reid. https://arxiv.org/abs/2009.08513
On the Highly Connected Dyadic, Near‐Regular, and Sixth‐Root‐of‐Unity Matroids (2020). Ben Clark, Kevin Grace, James Oxley, Stefan H.M. van Zwam. https://arxiv.org/abs/1903.04910
Annual Review | October 2019 – September 2020 Heilbronn Institute for Mathematical Research www.heilbronn.ac.uk Page|18
On Density‐Critical Matroids (2020). Rutger Campbell, Kevin Grace, James Oxley, Geoff Whittle. The Electronic Journal of Combinatorics, 27, 2. http://doi.org/10.37236/8584
Circuit‐Difference Matroids (2020). George Drummond, Tara Fife, Kevin Grace, James Oxley, The Electronic Journal of Combinatorics, 27,3. https://doi.org/10.37236/9314
The Templates for Some Classes of Quaternary Matroids, Kevin Grace. To appear in Journal of Combinatorial Theory, Series B. https://arxiv.org/abs/1902.07136
Shintani descent, simple groups and spread (2020). Scott Harper. https://arxiv.org/abs/2008.02558
The spread of a finite group (2020). Timothy Burness, Robert M Guralnick, Scott Harper. https://arxiv.org/abs/2006.01421
The spread of almost simple classical groups (2020). Scott Harper. https://arxiv.org/abs/2004.11060
Connectivity of generating graphs of nilpotent groups, Scott Harper, Andrea Lucchini. To appear in Algebraic Combinatorics. https://arxiv.org/abs/2002.03330
Finite groups, 2‐generation and the uniform domination number, Timothy Burness, Scott Harper. To appear in Israel Journal of Mathematics. https://arxiv.org/abs/1810.12076
Annual Review | October 2019 – September 2020 Heilbronn Institute for Mathematical Research www.heilbronn.ac.uk Page|19
Infinite 3/2‐generated groups, Case Donoven, Scott Harper. To appear in Bulletin of the London Mathematical Society. https://arxiv.org/abs/1907.05498
Permutations with orders coprime to a given integer (2020). John Bamberg, Stephen Glasby, Scott Harper, Cheryl E, Praeger. The Electronic Journal of Combinatorics, 27, 1. https://doi.org/10.37236/8678
Discrete restriction for (x,x3) and related topics (2019). Kevin Hughes, Trevor Wooley. https://arxiv.org/abs/1911.12262
Supercritical discrete restriction estimates for forms in many variables (2020). Brian Cook, Kevin Hughes and Eyvindur Palsson. https://arxiv.org/abs/2004.02301
Bounds for lacunary maximal functions given by Birch‐‐Magyar averages. Brian Cook, Kevin Hughes. To appear in Transactions of the AMS. https://arxiv.org/abs/1905.09189
ℓp‐improving for discrete spherical averages. Kevin Hughes. To appear in Annales Henri Lebesgue. https://arxiv.org/abs/1804.09260
Higher congruences between newforms and Eisenstein series of squarefree level (2019). Catherine Hsu, Journal de Théorie des Nombres de Bordeaux, 31, 2. https://arxiv.org/abs/1706.05589
Moduli Spaces of Unstable Objects: Sheaves of Harder‐Narasimhan Length 2. Joshua Jackson. To be submitted to the arXiv.
Annual Review | October 2019 – September 2020 Heilbronn Institute for Mathematical Research www.heilbronn.ac.uk Page|20
Indefinite zeta functions (2020). Gene Kopp. https://arxiv.org/abs/1912.12364
Moduli of Langlands parameters (2020). Robert Kurinczuk, Jean‐François Dat, David Helm, Gil Moss. https://arxiv.org/abs/2009.06708
Endo‐parameters for p‐adic classical groups. Robert Kurinczuk, Daniel Skodlerack, Shaun Stevens. To appear in Inventiones Mathematicae. https://doi.org/10.1007/s00222‐020‐00997‐0
Characterization of the poles of the l‐modular Asai L‐factor. Robert Kurinczuk, Nadir Matringe. To appear in Bulletin de la Société Mathématique de France. https://arxiv.org/abs/1903.02427
A characterization of the relation between two ℓ‐modular correspondences (2020). Robert Kurinczuk, Nadir Matringe, Comptes Rendus Mathématique, 358, 2, 201‐209. https://arxiv.org/abs/1911.12891
Annual Review | October 2019 – September 2020 Heilbronn Institute for Mathematical Research www.heilbronn.ac.uk Page|21
The ℓ‐modular local Langlands correspondence and local factors (2020). Robert Kurinczuk, Nadir Matringe, Journal of the Institute of Mathematics of Jussieu. https://arxiv.org/abs/1805.05888
On the p‐width of finite simple groups (2020). Alex Malcolm. https://arxiv.org/abs/2003.00755
Miyamoto groups of code algebras generated by small idempotents, Alonso Castillo‐ Ramirez, Justin McInroy. To appear in Journal of Pure and Applied Algebra. https://arxiv.org/abs/2001.08426
3‐generated axial algebras with a minimal Miyamoto group (2020). Justin McInroy. https://arxiv.org/abs/2004.11773
An expansion algorithm for constructing axial algebras (2020). Justin McInroy, Sergey Shpectorov, Journal of Algebra, 550, 379–409. https://arxiv.org/abs/1804.00587