3 papers
math.RA2006
Non-Commutative Formal Groups In Positive Characterstic
Frederick Leitner
We describe geometric non-commutative formal groups in terms of a geometric commutative formal group with a Poisson structure on its splay algebra. We describe certain natural prop…
math.RA2004
Unital Grobner Bases over Arbitrary Ground Rings
Frederick Leitner, Robert Pawloski
Let R be a commutative ring with unity and a let A be a not necessarily commutative R-algebra which is free as an R-module. If I is an ideal in A, one can ask when A/I is also free…
math.DG2001
Geometry of Four-vector Fields on Quaternionic Flag Manifolds
Philip Foth, Frederick Leitner
The purpose of this paper is to describe certain natural 4-vector fields on quaternionic flag manifolds, which geometrically determine the Bruhat cell decomposition. This structure…