Balser, W.; Jurkat, W. B.; Lutz, D. A. A general theory of invariants for meromorphic differential equations. I: Formal invariants. (English) Zbl 0434.34002 Funkc. Ekvacioj, Ser. Int. 22, 197-221 (1979). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 4 ReviewsCited in 33 Documents MSC: 34M05 Entire and meromorphic solutions to ordinary differential equations in the complex domain 34A30 Linear ordinary differential equations and systems Keywords:meromorphic differential equations; formal meromorphic invariants; formal analytic invariants; formal Birkhoff invariants PDF BibTeX XML Cite \textit{W. Balser} et al., Funkc. Ekvacioj, Ser. Int. 22, 197--221 (1979; Zbl 0434.34002) OpenURL