English

Jordan Decomposition for Formal G-Connections

Classical Analysis and ODEs 2019-02-11 v2 Commutative Algebra Algebraic Geometry

Abstract

A theorem of Hukuhara, Levelt, and Turrittin states that every formal differential operator has a Jordan decomposition. This theorem was generalised by Babbit and Varadarajan to the case of formal GG-connections where GG is a semisimple group. In this paper, we provide straightforward proofs of these facts, highlighting the analogy between the linear and differential settings.

Keywords

Cite

@article{arxiv.1702.03608,
  title  = {Jordan Decomposition for Formal G-Connections},
  author = {Masoud Kamgarpour and Samuel Weatherhog},
  journal= {arXiv preprint arXiv:1702.03608},
  year   = {2019}
}

Comments

14 pages

R2 v1 2026-06-22T18:16:16.359Z