This paper is concerned with an analytic invariant curves on a planar mapping of the iterative functional equation.
研究了复合迭代函数方程所代表的一类不变曲线的解析解，通过构造辅助方程的幂级数解，从而获得原方程的解析解。
In chapter 2, three kinds of planar mappings are discussed. We reduce the existence of analytic invariant curves of iterative functional equation by means of majorant series.
本文的第二章讨论了三类平面映射的解析不变曲线，用优级数方法讨论了不变曲线迭代函数方程解析解的存在性。
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