A system of linear differential equations with small parameter as a coefficient of a part of derivatives is reduced to the canonical form and the properties of the transformation matrix are investigated.
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Translated from Ukrains’kyi Matematychnyi Zhurnal, Vol. 62, No. 5, pp. 625–642, May, 2010.
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Klyuchnyk, I.H. Linear system of differential equations with turning point. Ukr Math J 62, 716–738 (2010). https://doi.org/10.1007/s11253-010-0383-x
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DOI: https://doi.org/10.1007/s11253-010-0383-x