Then it expands the B-vex functions by defining connected pseudo B-vex and connected quasi B-vex functions in terms of right upper derivative with respect to an arc.
在局部连通集上定义了连通b -凸函数；在关于弧的右上导数的基础上，定义了连通- B伪凸，连通b -拟凸函数，推广了B -凸函数。
Then it expands the B-vex functions by defining connected pseudo B-vex and connected quasi B-vex functions in terms of right upper derivative with respect to an arc.
研究了函数的一阶及二阶右导数与函数凸性的关系，推广了数学分析中的有关结果。
Methods the upper-lower solutions, monotone derivative methods, the maximum principle, comparison principle and principal eigenvalue theory were used.
方法采用上下解的方法、单调迭代法、比较原理、极值原理以及特征值理论进行了研究。
Methods the upper-lower solutions, monotone derivative methods, the maximum principle, comparison principle and principal eigenvalue theory were used.
方法采用上下解的方法、单调迭代法、比较原理、极值原理以及特征值理论进行了研究。
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