Kerr 时空赤道面上零测地线方程的严格求解
赵凡,贺锋
The exact solution to null geodesics at the equatorial plane in Kerr spacetime
ZHAO Fan1,HE Feng2
大学物理 . 2018, (7): 23 -24 .  DOI: 10. 16854 /j. cnki. 1000-0712. 170603