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一类迭代差分方程连续解的全局存在性 被引量:5

Global Existence of Continuous Solutions to a Class of Iterative-difference Equations
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摘要 针对N.Brillouёt-Belluot的公开问题所涉及的迭代差分方程,在局部有界连续解工作的基础上,研究一类形式更一般的迭代差分方程φ2(x)=λφ(kx+a)+f(x),其中φ为未知函数.利用不动点方法给出了该方程在R上存在无界连续解的条件. To the iterative-differenee equation which relates to N. Brillouet-Belluot' s open problem, the local bounded continuous solutions of it had been discussed before. On the basis of this, in this paper we discuss a more general class of iterative-difference equations: φ^2 (x) = λφ(kx + a) +f(x), where φ is the unknown function. By applying a Faxed point theorem, the existence of their unbounded continuous solutions on R is proved.
出处 《四川师范大学学报(自然科学版)》 CAS CSCD 北大核心 2011年第2期158-161,共4页 Journal of Sichuan Normal University(Natural Science)
基金 浙江省优秀青年教师基金(200911)资助项目 四川大学青年基金(2008123)
关键词 迭代差分 不动点 存在唯一 连续解 iterative-difference fixed point existence and uniqueness continuous solution
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