Finite superelements method for biharmonic equation

    Mikhail Galanin Affiliation
    ; Daniel Milyutin Affiliation
    ; Evgeny Savenkov Affiliation


In this work finite superelements method (FSEM) for solution of biharmonic equation in bounded domains is proposed and developed. The method is based on decomposition of domain into subdomains with the solution of a number of intermediary problems, every of which is a boundary value problem for biharmonic equation with boundary condition being basis for interpolation of solution at superelements boundaries. The initial problem solution is found as an expansion on the constructed function system. It is shown that the solution of general problem can be recovered using functions and traces found above. Error estimates for one case of FSEM are obtained.

First Published Online: 14 Oct 2010

Keyword : Biharmonic equation, finite superelements method, Poincaré‐Steklov operators

How to Cite
Galanin, M., Milyutin, D., & Savenkov, E. (2007). Finite superelements method for biharmonic equation. Mathematical Modelling and Analysis, 12(3), 309-324.
Published in Issue
Sep 30, 2007
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