### Technical Report No.107 - Abstract

**Mikael Hammar, Bengt J. Nilsson, Sven Schuierer**

* Parallel Searching on $m$ Rays*

In this paper we investigate parallel searching on *m*
concurrent rays. We assume that a target *t* is located
somewhere on one of the rays and that a group of *m* point
robots has to reach *t*. Furthermore, we assume that the robots
have no way of communicating over distance. Given a strategy
*S* we are interested in the competitive ratio which is defined
as the ratio of the time needed by the robots using *S* and the
time needed if the location of *t* is known in advance.

Report No. 107(PostScript)