Balser, W.; Jurkat, W. B.; Lutz, D. A. On the reduction of connection problems for differential equations with an irregular singular point to ones with only regular singularities. II. (English) Zbl 0639.34034 SIAM J. Math. Anal. 19, No. 2, 398-443 (1988). MSC: 34C20 34M35 34A30 PDFBibTeX XMLCite \textit{W. Balser} et al., SIAM J. Math. Anal. 19, No. 2, 398--443 (1988; Zbl 0639.34034) Full Text: DOI
Balser, W.; Jurkat, W. B.; Lutz, D. A. On the reduction of connection problems for differential equations with an irregular singular point to ones with only regular singularities. I. (English) Zbl 0468.34024 SIAM J. Math. Anal. 12, 691-721 (1981). MSC: 34C20 34C05 34A30 44A10 PDFBibTeX XMLCite \textit{W. Balser} et al., SIAM J. Math. Anal. 12, 691--721 (1981; Zbl 0468.34024) Full Text: DOI