【摘要】 利用部分逆算子理论就一阶非线性微分积分方程的周期边值问题(PBVP)x′=f(t,x,Tx),x(0)=x(2π),讨论了解的存在性,并利用上、下解方法给出其求近似解的迭代程序。更多还原

【Abstract】 The existence of the solution was given by using partial inverse openator theory with regard to the periodic boundary value problems(PBVP) of the firstorder differentialintegral equation: x′=f(t,x,Tx), x(0)=x(2π),and given an iterative program for finding approximate solution by means of the upper and lower solutions. 更多还原