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arXiv · 0811.2916

Classification of Fuchsian systems and their connection problem

Toshio Oshima
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Abstract

We review the Deligne-Simpson problem, a combinatorial structure of middle convolutions and their relation to a Kac-Moody root system discoverd by Crawley-Boevey. We show with examples that middle convolutions transform the Fuchsian systems with a fixed number of accessory parameters into fundamental systems whose spectral type is in a finite set and we give an explicit connection formula for solutions of Fuchsian differential equations without moduli.

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Toshio Oshima. 2009-01-07. Classification of Fuchsian systems and their connection problem. https://arxiv.org/abs/0811.2916

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