A Note on the Independence Number of Strong Products of Odd Cycles

Danilo Korze1, Aleksander Vesel2
1FERI, University of Maribor Smetanova 17, SI-2000 Maribor, Slovenia
2Faculty of Natural Sciences and Mathematics, University of Maribor Korogka cesta 160, SI-2000 Maribor, Slovenia

Abstract

The determination of the zero-capacity of a noisy channel has inspired research on the independence number of the strong product of odd cycles. The independence number for two infinite families of the strong product of three odd cycles is considered in this paper. In particular, we present the independence number of \(C_7 \boxtimes C_9 \boxtimes C_{2k+1}\) and an upper bound on the independence number of \(C_{13} \boxtimes C_3 \boxtimes C_{2k+1}\). The results are partially obtained by a computer search.