中文摘要：

考虑一个含有指数边界层的奇异摄动Robin问题．在Bakhvalov-Shishkin网格上用混合差分格式来离散Robin问题，证得此混合差分法是关于ε一致二阶L∞模收敛的．数值实验证实了理论结果，显示估计是稳健的．

英文摘要：

A singularly perturbed Robin type problem with an exponential boundary layer is considered. The problem is discretized by using the hybrid difference scheme on a Bakhvalov-Shishkin mesh. A uniform second-order error estimate is given in a discrete norm. Numerical experiments support these theoretical results and indicate that the estimates are stable.