基于方波信号的磁光调制具有优良的特性，但存在信号畸变的问题，从理论上研究了它的机理。将方波信号通过傅里叶级数展开成不同频率正......

In this paper, the space-time Riesz fractional partial differential equations with periodic conditions are considered. T......

Morphological analyses require quantitative description of river course by providing its equation. Such an equation is n......