Bertrand, Daniel Travaux récents sur les points singuliers des équations différentielles linéaires. (French) Zbl 0445.12012 Sémin. Bourbaki, 31e année, 1978/79, Exp. No. 538, Lect. Notes Math. 770, 228-243 (1980). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 1 ReviewCited in 5 Documents MSC: 12H20 Abstract differential equations 12H25 \(p\)-adic differential equations 34M99 Ordinary differential equations in the complex domain 46F15 Hyperfunctions, analytic functionals 34C05 Topological structure of integral curves, singular points, limit cycles of ordinary differential equations Keywords:irregular singularities; linear differential equations; connections; Newton polygon; regular singularities; formal solutions of a differential equation; index theorem for hyperfunctions Citations:Zbl 0221.14007; Zbl 0166.04301; Zbl 0299.34011; Zbl 0409.34018; Zbl 0258.46040; Zbl 0386.34008; Zbl 0347.14010; Zbl 0408.34004; Zbl 0415.00006 PDFBibTeX XML Full Text: Numdam EuDML