摘要
通过建立新的比较定理和利用上下解单调迭代方法,获得了最大解和最小解的存在性定理.其结果是文献[1]和文献[2]给定最近结果的必要改进和补充.
The periodic boundary value problems for first order integro\|differential equations of mixed type in banach spaces are discussed by the monotone iterative method when some of the traditional boundary conditions are violated by establishing a new comparative result; criteria on the existence of maximal and minimal solutions are obtained Hence, the results of the paper can improve recent results given in and .
出处
《甘肃科学学报》
2003年第1期1-4,共4页
Journal of Gansu Sciences
