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An algorithm for solving some nonlinear systems with applications to extremum problems

机译:一种求解某些非线性系统的算法,并应用于极值问题

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摘要

We consider a class of nonlinear systems for which a positive solution exists and is unique. Such systems appear quite naturally in several applications concerning difference equations. Moreover, certain extremum problems can be reduced to solving these systems. In order to solve such problems we develop a quasi-Newton algorithm which is very efficient just because the existence and uniqueness of the solution are guaranteed. Several numerical examples illustrate the general results.
机译:我们考虑一类存在正解且具有唯一性的非线性系统。这样的系统在涉及差分方程的几种应用中显得很自然。而且,某些极端问题可以减少以解决这些系统。为了解决这些问题,我们开发了一种准牛顿算法,该算法非常有效,只是因为该解决方案的存在性和唯一性得到了保证。几个数值示例说明了一般结果。

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