常見例句雙語例句This paper gives existence and uniqueness condition of solutions of the integral equation with variable separable kernel, and It's elementary solutions.本文給出了具有變量可分離核的積分方程解的存在條件和初等求解法。An epidemic SIS model whose coefficient is almost periodic functions is studied. A sufficient condition of existence and uniqueness of positive periodic solution is obtained.對系數(shù)是概周期函數(shù)的傳染病S IS 模型進(jìn)行了研究,得到了概周期解存在惟一的一個充分條件。A necessary and sufficient condition for the existence and a sufficient condition for the uniqueness, which are in a global form of integral, are obtained by the continuation method.用延拓方法得到了關(guān)于解存在的一個充分必要條件和解唯一的一個充分條件。 返回 uniqueness condition