A note on Negami's polynomial invariants for graphs (note)
Discrete Mathematics
A Tutte polynomial for signed graphs
Discrete Applied Mathematics - Combinatorics and complexity
Easy problems for tree-decomposable graphs
Journal of Algorithms
Tutte polynomials computable in polynomial time
Discrete Mathematics - Algebraic graph theory; a volume dedicated to Gert Sabidussi
Complexity: knots, colourings and counting
Complexity: knots, colourings and counting
Monotone monadic SNP and constraint satisfaction
STOC '93 Proceedings of the twenty-fifth annual ACM symposium on Theory of computing
Splitting formulas for Tutte polynomials
Journal of Combinatorial Theory Series B
An algorithm for the Tutte polynomials of graphs of bounded treewidth
Discrete Mathematics
Discrete Applied Mathematics - Special issue on international workshop of graph-theoretic concepts in computer science WG'98 conference selected papers
Treewidth: Algorithmoc Techniques and Results
MFCS '97 Proceedings of the 22nd International Symposium on Mathematical Foundations of Computer Science
Invariant Definability (Extended Abstract)
KGC '97 Proceedings of the 5th Kurt Gödel Colloquium on Computational Logic and Proof Theory
Back and Forth between Guarded and Modal Logics
LICS '00 Proceedings of the 15th Annual IEEE Symposium on Logic in Computer Science
A Tutte Polynomial for Coloured Graphs
Combinatorics, Probability and Computing
Evaluating the Tutte Polynomial for Graphs of Bounded Tree-Width
Combinatorics, Probability and Computing
Parameterized Complexity
Exploiting structure in quantified formulas
Journal of Algorithms
Parameterized Counting Problems
MFCS '02 Proceedings of the 27th International Symposium on Mathematical Foundations of Computer Science
Farrell polynomials on graphs of bounded tree width
Advances in Applied Mathematics - Special issue on: Formal power series and algebraic combinatorics in memory of Rodica Simion, 1955-2000
The parametrized complexity of knot polynomials
Journal of Computer and System Sciences - Special issue on Parameterized computation and complexity
Coloured Tutte polynomials and Kauffman brackets for graphs of bounded tree width
Discrete Applied Mathematics - Structural decompositions, width parameters, and graph labelings (DAS 5)
On the colored Tutte polynomial of a graph of bounded treewidth
Discrete Applied Mathematics
Fast algorithms for computing Jones polynomials of certain links
Theoretical Computer Science
Counting truth assignments of formulas of bounded tree-width or clique-width
Discrete Applied Mathematics
Coloured Tutte polynomials and Kauffman brackets for graphs of bounded tree width
Discrete Applied Mathematics - Structural decompositions, width parameters, and graph labelings (DAS 5)
Note: On the colored Tutte polynomial of a graph of bounded treewidth
Discrete Applied Mathematics
From a zoo to a zoology: descriptive complexity for graph polynomials
CiE'06 Proceedings of the Second conference on Computability in Europe: logical Approaches to Computational Barriers
Logic and Program Semantics
Computing HOMFLY polynomials of 2-bridge links from 4-plat representation
Discrete Applied Mathematics
Hi-index | 0.00 |
Jones polynomials and Kauffman polynomials are the most prominent invariants of knot theory. For alternating links, they are easily computable from the Tutte polynomials by a result of Thistlethwaite (1988), but in general one needs Kauffman's Tutte polynomials for signed graphs (1989), further generalized to colored Tutte polynomials, as introduced by Bollobas and Riordan (1999). Knots and links can be presented as labeled planar graphs. The tree width of a link L is defined as the minimal tree width of its graphical presentations D(L) as crossing diagrams. We show that the colored Tutte polynomial can be computed in polynomial time for graphs of tree width at most k. Hence, for (not necessarily alternating) knots and links of tree width at most k, even the Kauffman square bracket [L] introduced by Bollobas and Riordan can be computed in polynomial time. In particular, the classical Kauffman bracket (L) and the Jones polynomial of links of tree width at most k are computable in polynomial time.