It is pointed out that a coordinate or essential singularity near an event horizon will strongly influence the temperature of the horizon. It is a universal effect in 2-dimensional Riemann Space-time.

• 指出二维静态黎曼时空中的一个普遍效应:存在于事件视界附近的坐标奇点或内禀奇点会强烈影响视界的温度.