12 citations · 19 across the 9 of their papers we have counts for
10 papers
Autonomous first order differential equations
Marc Paul Noordman, Marius van der Put, Jaap Top
The problem of algebraic dependence of solutions to (non-linear) first order autonomous equations over an algebraically closed field of characteristic zero is given a `complete' an…
Stratified Bundles on Curves and Differential Galois Groups in Positive Characteristic
Marius van der Put
Stratifications and iterative differential equations are analogues in positive characteristic of complex linear differential equations. There are few explicit examples of stratific…
Linear differential equations with finite differential Galois group
M. van der Put, C. Sanabria Malagón, J. Top
For a differential operator of order over with a finite (differential) Galois group , there is an algorithm, by M. van Hoeij and J.-A.~Weil,…
Equivalence of differential equations of order one
L. X. Chau Ngo, K. A. Nguyen, M. van der Put +1
The notions of equivalence and strict equivalence for order one differential equations are introduced. The more explicit notion of strict equivalence is applied to examples and que…
The unicity of real Picard-Vessiot fields
Teresa Crespo, Zbigniew Hajto, Marius van der Put
The unicity of real Picard-Vessiot fields for differential modules over a real differential field is proved.
Ruled quartic surfaces, models and classification
Irene Polo-Blanco, Marius van der Put, Jaap Top
New historical aspects of the classification, by Cayley and Cremona, of ruled quartic surfaces and the relation to string models and plaster models are presented. In a `modern' tre…