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The STUDIA UNIVERSITATIS BABEŞ-BOLYAI issue article summary The summary of the selected article appears at the bottom of the page. In order to get back to the contents of the issue this article belongs to you have to access the link from the title. In order to see all the articles of the archive which have as author/co-author one of the authors mentioned below, you have to access the link from the author's name. |
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STUDIA MATHEMATICA - Issue no. 2 / 2018 | |||||||
Article: |
SOME PROPERTIES OF SOLUTIONS TO A PLANAR SYSTEM OF NONLINEAR DIFFERENTIAL EQUATIONS. Authors: VERONICA ILEA, DIANA OTROCOL. |
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Abstract: In this paper, we present for the solutions of a planar system of differential equations, extremal principle, Nicolescu-type and Butlewski-type separation theorems. Some applications and examples are given. Mathematics Subject Classification (2010): 34A12, 34C10, 34A34. Keywords: Nonlinear second order differential system, extremal principle, zeros of solutions, Sturm-type theorem, Nicolescu-type theorem, Butlewski-type theorem. |
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