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研究了一类二阶非线性摄动微分方程解的振动性与渐近性,建立了四个新的振动性与渐近性定理,推广和改进了已知的一些结果. 相似文献
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DISCUSSION ON THE CONTINUOUS SOLUTIONS OF A FUNCTIONAL EQUATION 总被引:1,自引:0,他引:1
1 IntroductionIn an issue of the American Mathematical Monthly [1] the following problemwas raised:"Determine all homeomorphisms f from [0,1] onto [0,1] that are solutionsof the functional equationf(Zx -- f(x)) = x for all x E [0,IJ.',Ratti and Lin [2] generalized the problem in two different directions. In thispapert we consider the following functional equationf(cr(x) df(x)) = F(x), (1.1)where c < 0,d > 0, c d = 1. We shall give the sufficient conditions ofthe existence, uniqueness a… 相似文献
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通过建立有关初值问题的脉冲微分不等式,结合单调迭代技巧,获得了具偏差变元的脉冲积分微分方程周期边值问题的最大、最小解. 相似文献
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