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The Tutte Polynomial for Matroids of Bounded Branch-Width

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14330%2F06%3A00016574" target="_blank" >RIV/00216224:14330/06:00016574 - isvavai.cz</a>

  • Alternative codes found

    RIV/61989100:27240/06:00013751

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    The Tutte Polynomial for Matroids of Bounded Branch-Width

  • Original language description

    It is a classical result of Jaeger, Vertigan and Welsh that evaluating the Tutte polynomial of a graph is $#P$-hard in all but few special points. On the other hand, several papers in past years have shown that the Tutte polynomial of a graph can be efficiently computed for graphs of bounded tree-width. In this paper we present a recursive formula computing the Tutte polynomial of a matroid $md M$ represented over a finite field (which includes all graphic matroids), using a so called parse tree of abranch-decomposition of $md M$. This formula provides an algorithm computing the Tutte polynomial for a representable matroid of bounded branch-width in polynomial time with a fixed exponent.

  • Czech name

    Tutte polynom na matroidech omezené branch-width

  • Czech description

    Klasický výsledek od Jaeger, Vertigan a Welsh říká, že Tuttův polynom grafu je #P-těžké vypočítat všude mimo několika speciálních bodů. Na druhou stranu několik dřívějších výsledků ukázalo, že Tuttův polynom lze efektivně vypočítat na grafech omezené tree-width. V našem článku ukážeme rekurzivní formuli, která umožňuje vypočítat Tuttův polynom matroidu reprezentovaného nad konečným tělesem za použití parsovacího stromu jeho větvené dekompozice. Tato formule ukazuje, jak efektivně vypočíst Tuttův polynomreprezentovaného matroidu s fixním exponentem.

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    BA - General mathematics

  • OECD FORD branch

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2006

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Combin. Prob. Computing

  • ISSN

    0963-5483

  • e-ISSN

  • Volume of the periodical

    15

  • Issue of the periodical within the volume

    3

  • Country of publishing house

    GB - UNITED KINGDOM

  • Number of pages

    13

  • Pages from-to

    397

  • UT code for WoS article

  • EID of the result in the Scopus database