Abstract
The problem of all-to-all communication in a network consists of designing directed paths between any ordered pair of vertices in a symmetric directed graph and assigning them minimum number of colours such that every two dipaths sharing an edge have distinct colour. We prove several exact results on the number of colours for some Cartesian product graphs, including 2-dimensional (toroidal) square meshes of odd side, which completes previous results for even sided square meshes.
This research was supported by grant No. 95/5305/277 of Slovak Grant Agency and by grant of British Council to the Project Loughborough Reconfigurable Array and Theoretical Aspects of Interconnection Networks. The research of the last two authors was supported also by the grant of EU INCO-COP 96-0195.
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Schröder, H., Sýkora, O., Vrt'o, I. (1997). Optical all-to-all communication for some product graphs (Extended Abstract). In: Plášil, F., Jeffery, K.G. (eds) SOFSEM'97: Theory and Practice of Informatics. SOFSEM 1997. Lecture Notes in Computer Science, vol 1338. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-63774-5_138
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DOI: https://doi.org/10.1007/3-540-63774-5_138
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