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Projective Isomonodromy and Galois Groups (1002.2005v5)
Published 10 Feb 2010 in math.CA and math.DS
Abstract: In this article we introduce the notion of projective isomonodromy, which is a special type of monodromy evolving deformation of linear differential equations, based on the example of the Darboux-Halphen equation. We give an algebraic condition for a paramaterized linear differential equation to be projectively isomonodromic, in terms of the derived group of its parameterized Picard-Vessiot group.
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