Abstract
A spanning tree of an unweighted graph is a minimum average stretch spanning tree if it minimizes the ratio of sum of the distances in the tree between the end vertices of the graph edges and the number of graph edges. We consider the problem of computing a minimum average stretch spanning tree in polygonal 2-trees, a super class of 2-connected outerplanar graphs. For a polygonal 2-tree on n vertices, we present an algorithm to compute a minimum average stretch spanning tree in O(n logn) time. This also finds a minimum fundamental cycle basis in polygonal 2-trees.
Supported by the Indo-Max Planck Centre for Computer Science Programme in the area of Algebraic and Parameterized Complexity for the year 2012 - 2013.
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Narayanaswamy, N.S., Ramakrishna, G. (2014). On Minimum Average Stretch Spanning Trees in Polygonal 2-Trees. In: Pal, S.P., Sadakane, K. (eds) Algorithms and Computation. WALCOM 2014. Lecture Notes in Computer Science, vol 8344. Springer, Cham. https://doi.org/10.1007/978-3-319-04657-0_29
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DOI: https://doi.org/10.1007/978-3-319-04657-0_29
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