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math.NT2015
-kernels occurring in an isogeny class of -divisible groups
Paul Ziegler
We give a criterion which allows to determine, in terms of the combinatorics of the root system of the general linear group, which p-kernels occur in an isogeny class of p-divisibl…
math.NT2014★ 5 cited
Presentations for quaternionic -unit groups
Ted Chinburg, Holley Friedlander, Sean Howe +5
The purpose of this paper is to give presentations for projective -unit groups of the Hurwitz order in Hamilton's quaternions over the rational field . To our knowle…
math.NT2013
Mordell-Lang in positive characteristic
Paul Ziegler
We give a new proof of the Mordell-Lang conjecture in positive characteristic for finitely generated subgroups. We also make some progress towards the full Mordell-Lang conjecture…