Abstract:
An explicit upper bound is obtained for the number of reflections of a billiard trajectory in a multidimensional polyhedral angle (in particular, for the number of collisions of n elastic particles on a line) in terms of a special geometrical characteristic of the angle.
Citation:
M. B. Sevryuk, “Estimate of the number of collisions of n elastic particles on a line”, TMF, 96:1 (1993), 64–78; Theoret. and Math. Phys., 96:1 (1993), 818–826