网页2020年6月6日 · Mathieu equation. The following ordinary differential equation with real coefficients: $$ \frac {d ^ {2} u } {dz ^ {2} } + ( a + b \cos 2z) u = 0,\ \ z \in \mathbf R . $$. It was introduced by E. Mathieu [1] in the investigation of the oscillations of an elliptic membrane; it is a particular case of a Hill equation.
网页第一类马蒂厄函数 (Mathieu function of the first kind)是马蒂厄方程的周期解。. 在马蒂厄方程中,若a取适当的值 (本征值),而使特征指数 μ (参见“ 希尔方程 ”)成为 0 或 i,相应地 u (z) 为以π或2π为周期的周期函数,称为第一类马蒂厄函数,简称马蒂厄函数 ...
网页2024年8月22日 · The equation arises in separation of variables of the Helmholtz differential equation in elliptic cylindrical coordinates. Whittaker and Watson (1990) use a slightly different form to define the Mathieu functions. The modified Mathieu differential equation (d^2U)/(du^2)-[a-2qcosh(2u)]U=0 (3) ...