2009 | OriginalPaper | Buchkapitel
A Generalization of the Zig-Zag Graph Product by Means of the Sandwich Product
verfasst von : David M. Monarres, Michael E. O’Sullivan
Erschienen in: Applied Algebra, Algebraic Algorithms and Error-Correcting Codes
Verlag: Springer Berlin Heidelberg
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In this paper we develop a generalization of the
zig-zag
graph product created by Reingold, Vadhan, and Widgerson[8]. We do this by using a broader definition of directed and undirected graphs in which incidence is determined by functions from the edge set to the vertex set. We introduce the
sandwich product
of graphs and show how our general
zig-zag
product is a sandwich product.