Publications

Papers

Jacobians of Reflection Groups. With Anne V. Shepler . To appear in Transactions of the AMS

On the inverse problem in differential Galois theory
J. Reine Angew. Math. 586 (2005), 21--44.

Invariants and Differential Galois Groups in Degree 4
In: Differential Galois Theory, Banach Center Publications Vol. 58, T. Crespo and Zbigniew Hajto (eds.)

Transvection Free Groups and Invariants of Polynomial Tensor Exterior Algebras
Transformation Groups, Vol. 6, No. 2, 2001, pp. 157-164

Preprints etc.

Patching and Differential Galois Theory. With D. Harbater . (in preparation).

Reflection Groups and Invariant Forms. With Anne V. Shepler . Submitted (16 pages).

Differential Galois Theory in Positive Characteristic
Notes from a class given by B.H. Matzat, IWR-Preprint No. 2001-35

Dissertation/Diplom thesis

On the Inverse Problem in Differential Galois Theory
Heidelberg, October 2002. Available from www.ub.uni-heidelberg.de/archiv/3085

Invariants of Polynomial Tensor Exterior Algebras
Diplomarbeit, Göttingen, October 1999.

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