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Bibliographic Details
Main Author: Oshima, Toshio
Format: Preprint
Published: 2025
Subjects:
Online Access:https://arxiv.org/abs/2504.09003
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Table of Contents:
  • We introduce an extension of the generalized Riemann scheme for Fuchsian ordinary differential equations in the case of KZ-type equations. This extension describes the local structure of equations obtained by resolving the singularities of KZ-type equations. We present the transformation of this extension under middle convolutions. As a consequence, we derive the corresponding transformation of the eigenvalues and multiplicities of the residue matrices of KZ-type equations under middle convolutions. We interpret the result in terms of the combinatorics of single-elimination tournaments.