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"Weighted interlace polynomials"@en;
;
"heidenwt@lafayette.edu";
"Traldi, Lorenzo";
"en";
"Combinatorics, Probability and Computing";
"""The interlace polynomials introduced by Arratia, Bollobas and Sorkin extend to invariants of graphs with vertex weights, and these weighted interlace polynomials have several novel properties. One novel property is a version of the fundamental three-term formula
q(G) = q(G - a) + q(G(ab) - b) + ((x - 1)(2) - 1)q(G(ab) - a - b)
that lacks the last term. It follows that interlace polynomial computations can be represented by binary trees rather than mixed binary-ternary trees. Binary computation trees provide a description of q(G) that is analogous to the activities description of the Tutte polynomial. If G is a tree or forest then these 'algorithmic activities' are associated with a certain kind of independent set in G. Three other novel properties are weighted pendant-twin reductions, which involve removing certain kinds of vertices from a graph and adjusting the weights of the remaining vertices in such a way that the interlace polynomials are unchanged. These reductions allow for smaller computation trees as they eliminate some branches. If a graph can be completely analysed using pendant-twin reductions, then its interlace polynomial can be calculated in polynomial time. An intuitively pleasing property is that graphs which can be constructed through graph substitutions have vertex-weighted interlace polynomials which can be obtained through algebraic substitutions.""";
"2011-01-06T14:44:42Z";
"Traldi, L. 2010 \"Weighted interlace polynomials.\" Combinatorics, Probability and Computing 19 (1): 133-157.";
"2019-10-20T00:04:24.269089246+00:00"^^;
"noid:t148fh410",
"hdl:10385/782";
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"2010-01";
"2020-02-05T20:28:36.328246953+00:00"^^;
"Cambridge University Press";
"Article";
"Mathematics";
"Natural Sciences";
"Lafayette College";
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"http://rightsstatements.org/vocab/InC/1.0/";
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"Publication" .
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