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Superconvergence of Tetrahedral Quadratic Finite Elements

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985840%3A_____%2F05%3A00022170" target="_blank" >RIV/67985840:_____/05:00022170 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Superconvergence of Tetrahedral Quadratic Finite Elements

  • Original language description

    For a model elliptic boundary value problem we will prove that on strongly regular families of uniform tetrahedral partitions of a polyhedral domain, the gradient of the quadratic finite element approximation is superclose to the gradient of the quadratic Lagrange interpolation of the exact solution. This supercloseness will be used to construct a post-processing that increases the order of approximation to the gradient in the global L2-norm.

  • Czech name

    Superkonvergence kvadratických čtyřstěnných konečných prvků

  • Czech description

    Uvažuje se eliptická okrajová úloha na polyhedrické oblasti. Pro uniformní čtyřstěnné sítě je ukázáno, že gradient řešení získaného metodou konečných prvků je superblízký gradientu Lagrangeovy kvadratické interpolace přesného řešení.

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

    <a href="/en/project/GA201%2F02%2F1058" target="_blank" >GA201/02/1058: The worst scenario method in modelling of nonlinear behaviour of solid bodies</a><br>

  • Continuities

    Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2005

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    Journal of Computational Mathematics

  • ISSN

    0254-9409

  • e-ISSN

  • Volume of the periodical

    23

  • Issue of the periodical within the volume

    1

  • Country of publishing house

    CN - CHINA

  • Number of pages

    10

  • Pages from-to

    27-36

  • UT code for WoS article

  • EID of the result in the Scopus database