运用上下解方法研究了测度链上二阶▽-导数动力方程终值问题解的存在性,证明了其最大解和最小解的存在性,并举例验证了理论结果的正确性.
Existence of solutions for terminal value problem of second-order ▽-derivative dynamic equa- tions on time scales was studied by using method of upper and lower solutions, existence of maximal and minimal solutions was proven thereby, and an example was given to verify the validity of the theoretic resuit.