12 citations · 12 across the 5 of their papers we have counts for
5 papers
A local-global problem for linear differential equations
Marius van der Put, Marc Reversat
An inhomogeneous linear differential equation Ly=f over a global differential field can have a formal solution for each place without having a global solution. The vector space lgl…
A note about rational representations of differential Galois groups
Marc Reversat
We give a description of the rational representations of the differential Galois group of a Picard-Vessiot extension.
Galois theory of q-difference equations
Marius van der Put, Marc Reversat
Choose with 0<|q|<1. The main theme of this paper is the study of linear q-difference equations over the field K of germs of meromorphic functions at 0. It turns…
Harmonic cocycles and cohomology of arithmetic groups (in positive characteristic)
Marc Reversat
Let be a global field of characteristic . We study the cohomology of arithmetic subgroups of (with respect to a fixed place of ), under the hypothesis…
On modular forms of characteristic p>0
Marc Reversat
We compare modular forms of characteristic (i.e. Drinfeld's modular forms) and automorphic forms. We prove that spaces of these modular forms (which are of characteristic …