Abstract
Fundamental systems for linear differential equations with operator coefficients are investigated, the concept of a Wronskian for such equations is introduced, and a method for constructing a differential equation from its fundamental system is proposed.
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N. Bourbaki, Functions of a Real Variable [Russian translation], Moscow (1965).
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Translated from Matematicheskie Zametki, Vol. 8, No. 6, pp. 777–782, December, 1970.
We must thank V. É. Lyants for his help and the referee for his valuable advice.
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Matkovskii, A.P., Mukhachev, V.A. Fundamental systems for differential equations with operator coefficients. Mathematical Notes of the Academy of Sciences of the USSR 8, 910–913 (1970). https://doi.org/10.1007/BF01673693
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DOI: https://doi.org/10.1007/BF01673693