Geodesic
Construction of a system of linear differential equations from a scalar equation
Informatics and Automation, Differential equations and topology. II, Tome 271 (2010), pp. 335-351 
I. V. V'yugin; R. R. Gontsov. Construction of a system of linear differential equations from a scalar equation. Informatics and Automation, Differential equations and topology. II, Tome 271 (2010), pp. 335-351. http://geodesic.mathdoc.fr/item/TRSPY_2010_271_a21/
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Voir la notice de l'article provenant de la source Math-Net.Ru

As is well known, given a Fuchsian differential equation, one can construct a Fuchsian system with the same singular points and monodromy. In the present paper, this fact is extended to the case of linear differential equations with irregular singularities.

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