On global simplification of a singularly perturbed system of linear ordinary differential equations

MR0707561 Gingold, Harry and Hsieh, Po-Fang Harry GINGOLD and Po-Fang HSIEH On global simplification of a singularly perturbed system of linear ordinary differential equations Funkcialaj Ekvacioj. Serio Internacia 25 1982 269--281 http://fe.math.kobe-u.ac.jp/FE/Free/vol25/fe25-3-3.pdf http://fe.math.kobe-u.ac.jp/FE/FE_pdf_with_bookmark/FE21-30-en_KML/fe25-269-281/fe25-269-281.pdf http://www.ams.org/mathscinet-getitem?mr=MR0707561 fe25-269-281 1982 On Global Simplification of a Singularly Perturbed System of Linear Ordinary Differential Equations GINGOLD, Harry; HSIEH, Po-Fang GINGOLD, Harry; HSIEH, Po-Fang 1 Bellman, R. Methods of Nonlinear Analysis Academic Press, New York, N.Y. 1970 MR0254299 xx+340

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