Z正交理论及其应用(Ⅰ)

Theory of Z Orthogonality and Its Application (Ⅰ)

文章定义了一类条件参变量正交系统，它是普通正交理论的一种推广。Ｚ正交理论是以常微分方程定性理论中的中心─焦点问题为背景提出的，期望随着这一理论的进一步完善，能够推动解决中心─焦点系统的焦点量上界问题。

This paper defined a sort of conditional parameter perpendicular system, which was a generalization of common perpendicular system. The theory of Z orthogonality was put forward with the background of center or focus in qualitative theory of ordinary differential equation. With gradually improving, this theory is expected to help the solution of upper bound of foci's value to be worked out in focus system.