Jason Semeraro

Jason Semeraro's Personal Page

Jason Semeraro

Heilbronn Research Fellow

Department of Mathematics
University of Leicester
University Road
Leicester LE1 7RH
United Kingdom



Office Tel: +44 (0)116 252 3892



Fusion systems and $p$-local group theory

Saturated fusion systems over 3-groups (joint with Chris Parker) (in preparation)

New families of local algebraic groups (joint with Andrew Chermak and Rémi Molinier) (in preparation)

On the number of simple modules of a fusion system (joint with Justin Lynd) (in preparation)

Reduced fusion systems over $p$-groups with abelian subgroup of index $p$: II arXiv:1606.05133 (joint with David Craven and Bob Oliver) (to appear in Adv. Math.)

Fusion systems over a Sylow $p$-subgroup of $G_2(p)$ arXiv:1608.08399 (joint with Chris Parker) (to appear in Math. Zeitschrift)

Centralizers of normal subgroups and the $Z^*$-theorem J. Algebra 439 (2015), 511-514 arXiv:1411.1932 (joint with Ellen Henke)

Centralizers of subsystems of fusion systems J. Group Theory 18 (2015), 393-405 arXiv:1402.4981

Trees of fusion systems J. Algebra, 399 (2014), 1051-1072 arXiv:1211.6700

DPhil thesis (2013)

MPhil thesis (2009)


Combinatorics and permutation groups

The cycle polynomial of a permutation group arXiv: 1701.06954 (joint with Peter Cameron) (submitted)

Conway groupoids, regular two-graphs and supersimple designs arXiv:1510.06680 (joint with Nick Gill, Neil Gillespie and Cheryl Praeger) (submitted)

Conway groupoids and completely transitive codes arXiv:1410.4785 Combinatorica, (joint with Nick Gill and Neil Gillespie) (to appear)

Conway’s groupoid and its relatives Contemporary Mathematics Volume 694, 2017 in honour of John H. Conway (joint with Nick Gill, Neil Gillespie and Cheryl Praeger)

Tournaments, 4-uniform hypergraphs, and an exact extremal result J. Comb. Theory, Series B, 126 (2017) 114-136 arXiv:1509.03268 (joint with Karen Gunderson)

Generating groups using hypergraphs Quart. J. Math, 67 (1) (2016), 29-52 arXiv:1405.1701 (joint with Nick Gill, Neil Gillespie and Tony Nixon)

Bounding the number of hyperedges in friendship $r$-hypergraphs European J. Combinatorics 51 (2016), 125-134 arXiv:1412.5822 (joint with Karen Gunderson and Natasha Morrison)


Useful Links

Maths Genealogy Project
University of Leicester
Terence Tao's blog
Tim Gower's blog
University of Bristol


Fun Stuff

Noughts and Crosses
Conway's Cosmological Theorem
M(13) demonstration
Finite simple group of order two
Quiver mutations in Java



Last updated: 25/10/2016

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Contact details

Department of Mathematics
University of Leicester
University Road
Leicester LE1 7RH
United Kingdom

Tel.: +44 (0)116 252 3917
Fax: +44 (0)116 252 3915

Campus Based Courses

Undergraduate: mathsug@le.ac.uk
Postgraduate Taught: mathspg@le.ac.uk

Postgraduate Research: pgrmaths@le.ac.uk

Distance Learning Course  

Actuarial Science:



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