Title
Queue Layouts of Planar 3-Trees
Abstract
A queue layout of a graph G consists of a linear order of the vertices of G and a partition of the edges of G into queues, so that no two independent edges of the same queue are nested. The queue number of graph G is defined as the minimum number of queues required by any queue layout of G. In this paper, we continue the study of the queue number of planar 3-trees, which form a well-studied subclass of planar graphs. Prior to this work, it was known that the queue number of planar 3-trees is at most seven. In this work, we improve this upper bound to five. We also show that there exist planar 3-trees whose queue number is at least four. Notably, this is the first example of a planar graph with queue number greater than three.
Year
DOI
Venue
2020
10.1007/s00453-020-00697-4
ALGORITHMICA
Keywords
DocType
Volume
Queue layouts,Constant queue number,Planar 3-trees
Journal
82.0
Issue
ISSN
Citations 
9
0178-4617
0
PageRank 
References 
Authors
0.34
0
5
Name
Order
Citations
PageRank
Md. Jawaherul Alam17814.24
Michael A. Bekos225038.21
Martin Gronemann3267.96
Michael Kaufmann41224107.33
Sergey Pupyrev514817.77