This article is cited in 2 papers

Ordinary Differential Equations

An Estimate of the Number of Limit Cycles via Critical Points of Conditional Extremum

L. A. Cherkas

Belarussian State University of Computer Science and Radioelectronic Engineering

UDC: 517.925.42

Received: 15.11.2001

 English version: Differential Equations, 2003, 39:10, 1404–1413

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