A server needs to compute a broadcast schedule for n pages whose request times are known in advance. Outputting a page satisfies all outstanding requests for the page. The goal is to minimize the average waiting time of a client. In this paper, we show the equivalence of two apparently different relaxations that have been considered for this problem. © 2003 Elsevier B.V. All rights reserved.
Khuller, S., & Kim, Y. A. (2004). Equivalence of two linear programming relaxations for broadcast scheduling. Operations Research Letters, 32(5), 473–478. https://doi.org/10.1016/j.orl.2003.11.012