Hostname: page-component-586b7cd67f-t8hqh Total loading time: 0 Render date: 2024-11-24T20:06:30.424Z Has data issue: false hasContentIssue false
  • English
  • Français

On Fuchs' relation for linear differential systems

Published online by Cambridge University Press:  04 December 2007

Eduardo Corel
Eduardo Corel
Affiliation:
Laboratoire AGAT, Université des Sciences et Technologies Lille 1, Cité Scientifique, 59655 Villeneuve d'Ascq Cedex, [email protected] 14, rue Lepic, 75018 Paris, France
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

In this paper, we give a formal algebraic notion of exponents for linear differential systems at any singularity as eigenvalues of the residue of a regular connection on a maximal lattice (that we call ‘Levelt's lattice’). This allows us to establish upper and lower bounds for the sum of these exponents for differential systems on ${\mathbb P}^{1}(\mathbb{C})$.

Keywords

differential systemirregular singularityconnectionLevelt latticeexponentsFuchs' relation34A2034A3012H0534C2032S40
Type
Research Article
Information
Compositio Mathematica , Volume 140 , Issue 5 , September 2004 , pp. 1367 - 1398
Copyright
Foundation Compositio Mathematica 2004