even generalized function偶广义函数
even harmonic function偶谐函数
even-function偶函数
odd and even parity function奇偶校验函数
gerade Funktion even function偶函数
odd even function奇函数
odd or even function奇或偶函数
sixth order even function六次偶函数
generalized odd even function广义奇函数
Secondly, the multiplicity anti-symmetric sign-changing solutions forthree-order boundary value problemsis considered by using extending positive solution method and the fixed-pointindex theory, where f is continuous nonnegative and even function in R~1.
其中f为R~1上的非负连续偶函数。
参考来源 - 非线性三阶微分方程边值问题的变号解