零特征值 meaning in English

zero eigenvalue

The multiple method of scale is used to obtain the averaged equations in primary parameter resonance . from the averaged equations , the theory of normal form is applied to find the explicit formulas of normal form associated with a double zero and a pair of pure imaginary eigenvalues with the aid of the maple program
利用多尺度方法得出了主参数共振情况下的平均方程，利用normalform理论对具有双零特征值和一对纯虚特征值的平均方程进行了简化，得到了平均系统的normalform 。
One of open problems is to study harmonic maps between finsler manifolds and derive the first and second variation formula for harmonic maps between finsler manifolds . firstly , we define harmonic map between finsler manifold . in fact , it is the harmonic map from projective sphere bundle of source manifold to the projective sphere bundle of target manifold
算子的第一非零特征值凡全mk .特别地，当‘ ，二二k时， m的直径为六?当m是黎曼流形时，由moer “定理的推论直接可知m与半径为去的球等距