Shortest periodic billiard trajectories in convex bodies
Shortest periodic billiard trajectories in convex bodies
复制标题
凸体中最短周期台球轨迹
DOI:
10.1007/s00039-004-0458-7
复制
发表时间:
2004
期刊:
影响因子:
--
通讯作者:
M. Ghomi
中科院分区:
文献类型:
--
作者:
M. Ghomi
We show that the length of any periodic billiard trajectory in any convex bodyis always at least 4 times the inradius of K; the equality holds precisely when the width ofKis twice its inradius, e.g.,Kis centrally symmetric, in which case we prove that the shortest periodic trajectories are all bouncing ball (2-link) orbits.