2005 European Conference on Combinatorics, Graph Theory and Applications (EuroComb '05)
Stefan Felsner (ed.)
DMTCS Conference Volume AE (2005), pp. 6772
author:  William Evans and Mohammad Ali Safari 

title:  Directed OneTrees 
keywords:  treewidth, treedecomposition, dwidth, ddecomposition, and haven order. 
abstract: 
We identify the class of directed onetrees and prove the
socalled minmax theorem for them. As a consequence, we
establish the equality of directed treewidth and a new
measure, dwidth, on this class of graphs. In addition, we
prove a property of all directed onetrees and use this
property to create an
O(n
recognition algorithm and an
2
)
O(n
algorithm for solving the Hamiltonian cycle problem
on directed onetrees.
2
)

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reference:  William Evans and Mohammad Ali Safari (2005), Directed OneTrees , in 2005 European Conference on Combinatorics, Graph Theory and Applications (EuroComb '05), Stefan Felsner (ed.), Discrete Mathematics and Theoretical Computer Science Proceedings AE, pp. 6772 
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Automatically produced on Di Sep 27 10:09:42 CEST 2005 by gustedt