locus-ceruleus 发表于 2025-3-30 11:30:15

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Exclude 发表于 2025-3-30 15:35:24

Monodromy, the Riemann-Hilbert Problem, and the Differential Galois Groupat are meromorphic functions on .. We assume that the equation is regular at every point .∈.. Thus, for any point .∈., the equation has . independent solutions .,…, . consisting of vectors with coordinates in .({.−.}). It is known (, chap. 9; , p. 5) that these solutions converge in a disk

stress-test 发表于 2025-3-30 17:37:48

Differential Equations on the Complex Sphere and the Riemann-Hilbert Problemether with a map ∂: .→. satisfying the rules: ∂(.+.)=∂(.)+∂(.), and ∂(.)=.+.∂(.). In this definition, one refers to the chosen derivation of .. We want to introduce the more general concept of ., which avoids this choice. The advantage is that one can perform constructions, especially for the Rieman

palette 发表于 2025-3-31 00:02:19

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查看完整版本: Titlebook: Galois Theory of Linear Differential Equations; Marius Put,Michael F. Singer Book 2003 Springer-Verlag Berlin Heidelberg 2003 Arithmetic.A