2 papers
math.GR2017
Orthogonal groups in characteristic 2 acting on polytopes of high rank
Peter A. Brooksbank, John T. Ferrara, Dimitri Leemans
We show that for all integers , and all integers , the orthogonal groups $\Orth^{\pm}(2m,\Fk)$ act on abstract regular polytopes of rank , and the symplectic…
math.NT2016
Generic Extensions and Generic Polynomials for Linear Algebraic Groups
Eric Y. Chen, J. T. Ferrara, Liam Mazurowski
We show the existence of and explicitly construct generic polynomials for various groups, over fields of positive characteristic. The methods we develop apply to a broad class of c…