NULL GEODESICS AND THE STABILITY OF THE NONSING-ULAR SCHWARZSCHILD BLACK HOLE
非奇性Schwarzschild黑洞的零测地线和稳定性

The null geodesies and the stability of the nonsingular black hole are further investigated. The results show that null geodesies in the nonsingular Schwarzschild black hole are also complete as the timelike geodesies and a stable nonsingular black hole can exist.