Author: Karim, Rahmi Ibrahim Ibrahim Abdel
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Karim, Rahmi Ibrahim Ibrahim Abdel:
On the exceptional case in systems of non-linear differential equations.
(English).
Archivum Mathematicum,
vol. 7
(1971),
issue 1,
pp. 9-20,21a,21
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Karim, Rahmi Ibrahim Ibrahim Abdel:
On the behaviour of the solutions and their first $(n-1)$ derivatives of the $n$-th order differential equations with periodic coefficients.
(English).
Archivum Mathematicum,
vol. 6
(1970),
issue 4,
pp. 237-249
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Karim, Rahmi Ibrahim Ibrahim Abdel:
Über den Resonanzfall bei gewöhnlichen linearen Differentialgleichungen $n$-ter Ordnung mit periodischen veränderlichen Koeffizienten.
(German) [On the resonance case for ordinary linear differential equations of $n$-th order with periodic coefficients].
Archivum Mathematicum,
vol. 3
(1967),
issue 1,
pp. 11-30
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