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Durham Research Online
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Finding cactus roots in polynomial time.

Golovach, P.A. and Kratsch, D. and Paulusma, D. and Stewart, A. (2016) 'Finding cactus roots in polynomial time.', in Combinatorial algorithms : 27th international workshop, IWOCA 2016, Helsinki, Finland, August 17-19, 2016 ; proceedings. Cham, Switzerland: Springer, pp. 361-372. Lecture notes in computer science. (9843).

Abstract

A cactus is a connected graph in which each edge belongs to at most one cycle. A graph H is a cactus root of a graph G if H is a cactus and G can be obtained from H by adding an edge between any two vertices in H that are of distance 2 in H. We show that it is possible to test in O(n4)O(n4) time whether an n-vertex graph G has a cactus root.

Item Type:Book chapter
Full text:(AM) Accepted Manuscript
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Status:Peer-reviewed
Publisher Web site:http://dx.doi.org/10.1007/978-3-319-44543-4_28
Publisher statement:The final publication is available at Springer via http://dx.doi.org/10.1007/978-3-319-44543-4_28
Date accepted:15 July 2016
Date deposited:03 October 2016
Date of first online publication:09 August 2016
Date first made open access:09 August 2017

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