In this paper we study a logistic-like and Gauss coupled maps to investigate the period-adding phenomenon, where infinite sets of periodicity ($p$) form a sequence in planar parameter spaces, such that, the periodicity of adjacent elements differ by a same constant ($\rho$) in the whole sequence ($p_{i+1}-p_i=\rho$). We describe the complete mechanism that form this sequence from a closed domain of isoperiodicity. Changing a control parameter, infinite different periodicities ring-shaped take place in this domain promoting regions of chaoticity. In this environment several complex sets of periodicity arise aligning themselves in sequences of period-adding, which is a common scenario that appears in a great variety of nonlinear dynamical systems. The complete process is unraveled by applying the theory of extreme orbits.

在本文中，我们研究了类似logistic的图和高斯耦合图，以研究周期增加现象，其中无限周期的集合（$p$）在平面参数空间中形成一个序列，以使相邻元素的周期性相差相同的常数（$\rho$）在整个序列中$p_{\mathrm{一世}+\mathrm{1个}}-p_{\mathrm{一世}}=\rho$）。我们描述了从等规闭域形成此序列的完整机制。改变控制参数，在该区域中会产生无限不同的环形环状，从而促进了混沌区域。在这种环境下，出现了几组复杂的周期性，它们按照周期相加的顺序对齐，这是出现在各种非线性动力学系统中的常见情况。应用极端轨道理论可以阐明整个过程。