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2015 | OriginalPaper | Chapter

Towards Characterizing Graphs with a Sliceable Rectangular Dual

Authors : Vincent Kusters, Bettina Speckmann

Published in: Graph Drawing and Network Visualization

Publisher: Springer International Publishing

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Abstract

Let \(\mathcal {G} \) be a plane triangulated graph. A rectangular dual of \(\mathcal {G} \) is a partition of a rectangle R into a set \(\mathcal {R} \) of interior-disjoint rectangles, one for each vertex, such that two regions are adjacent if and only if the corresponding vertices are connected by an edge. A rectangular dual is sliceable if it can be recursively subdivided along horizontal or vertical lines. A graph is rectangular if it has a rectangular dual and sliceable if it has a sliceable rectangular dual. There is a clear characterization of rectangular graphs. However, a full characterization of sliceable graphs is still lacking. The currently best result (Yeap and Sarrafzadeh, 1995) proves that all rectangular graphs without a separating 4-cycle are sliceable. In this paper we introduce a recursively defined class of graphs and prove that these graphs are precisely the nonsliceable graphs with exactly one separating 4-cycle.

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Footnotes
1
Confirmed by Dasgupta and Sur-Kolay, personal communication, 2011-2013.
 
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Metadata
Title
Towards Characterizing Graphs with a Sliceable Rectangular Dual
Authors
Vincent Kusters
Bettina Speckmann
Copyright Year
2015
DOI
https://doi.org/10.1007/978-3-319-27261-0_38

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