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Symbolic-Numerical Algorithms for Solving the Parametric Self-adjoint 2D Elliptic Boundary-Value Problem Using High-Accuracy Finite Element Method

  • A. A. Gusev
  • V. P. Gerdt
  • O. Chuluunbaatar
  • G. Chuluunbaatar
  • S. I. VinitskyEmail author
  • V. L. Derbov
  • A. Góźdź
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 10490)

Abstract

We propose new symbolic-numerical algorithms implemented in Maple-Fortran environment for solving the parametric self-adjoint elliptic boundary-value problem (BVP) in a 2D finite domain, using high-accuracy finite element method (FEM) with triangular elements and high-order fully symmetric Gaussian quadratures with positive weights, and no points are outside the triangle (PI type). The algorithms and the programs calculate with the given accuracy the eigenvalues, the surface eigenfunctions and their first derivatives with respect to the parameter of the BVP for parametric self-adjoint elliptic differential equation with the Dirichlet and/or Neumann type boundary conditions on the 2D finite domain, and the potential matrix elements, expressed as integrals of the products of surface eigenfunctions and/or their first derivatives with respect to the parameter. We demonstrated an efficiency of algorithms and program by benchmark calculations of helium atom ground state.

Keywords

Parametric elliptic boundary-value problem Finite element method High-order fully symmetric high-order Gaussian quadratures Kantorovich method Systems of second-order ordinary differential equations 

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Copyright information

© Springer International Publishing AG 2017

Authors and Affiliations

  • A. A. Gusev
    • 1
  • V. P. Gerdt
    • 1
    • 2
  • O. Chuluunbaatar
    • 1
    • 3
  • G. Chuluunbaatar
    • 1
    • 2
  • S. I. Vinitsky
    • 1
    • 2
    Email author
  • V. L. Derbov
    • 4
  • A. Góźdź
    • 5
  1. 1.Joint Institute for Nuclear ResearchDubnaRussia
  2. 2.RUDN UniversityMoscowRussia
  3. 3.Institute of MathematicsNational University of MongoliaUlaanbaatarMongolia
  4. 4.N.G. Chernyshevsky Saratov National Research State UniversitySaratovRussia
  5. 5.Institute of PhysicsUniversity of Maria Curie-SkłodowskaLublinPoland

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