On the Sign of Solutions of Systems of Ordinary Differential Equations

• Published in: Український математичний журнал
• Date: 2002
• Main Author: Kalinowski, J.
• Format: Article
• Language: English
• Published: Інститут математики НАН України 2002
• Subjects: Короткі повідомлення
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/164322
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: On the Sign of Solutions of Systems of Ordinary Differential Equations / J. Kalinowski // Український математичний журнал. — 2002. — Т. 54, № 9. — С. 1282–1283. — Бібліогр.: 4 назв. — англ.

We show that Theorems 1 and 3 in A. G. Gritsai's paper “Monotonicity properties of solutions of systems of nonlinear differential equations” published in the collection of works Approximate and Qualitative Methods in the Theory of Differential and Functional Differential-Equations (Institute of...