Communications - Scientific Letters of the University of Zilina 2004, 6(1):68-71 | DOI: 10.26552/com.C.2004.1.68-71

The Eigenvalue Approximations of the Laplace Operator Defined on a Domain with Strongly Deformed Boundary

Slavka Tkacova1
1 Department of Mathematic Analysis and Applied Mathematics, Faculty of Science, University of Zilina, Slovak Republic

In this paper the eigenvalue approximations of the Laplace operator defined on a domain with strongly deformed boundary are presented. Because the exact eigenfunctions exhibit complicated behaviour in the vicinity of singular points of the used conformal mapping, the B-spline trial functions are used in order to improve the quality of the eigenfunction approximations near the singular points.

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Published: March 31, 2004  Show citation

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Tkacova, S. (2004). The Eigenvalue Approximations of the Laplace Operator Defined on a Domain with Strongly Deformed Boundary. Communications - Scientific Letters of the University of Zilina6(1), 68-71. doi: 10.26552/com.C.2004.1.68-71
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References

  1. BEPPU, Y., NINOMIYA, I.: NICER - Fast Eigenvalues Routines, Comput. Phys. Commun., Vol. 23, 1981, pp. 123 - 126. Go to original source...
  2. DE BOOR, C.: A Practical Guide to Splines, Springer - Verlag, New York, 1978. Go to original source...
  3. KUTTLER, J. R., SIGILLITO, V. G.: Eigenvalues of the Laplacian in Two Dimension, SIAM Review 26, No. 2 (1984), pp. 163 - 193. Go to original source...
  4. REKTORYS, K.: Variational methods in engineering and in problems of mathematical physic, SNTL, Praha, 1974.
  5. TKÁČOVÁ, S.: Computation of Eigenvalues for Domains with Complicated Boundary Shape, Journal of Electrical Engineering, No. 12/s, Vol. 53 (2002), pp. 24 - 26.
  6. WILLIAMS, K. R., LESSER, T. H. J.: Natural Frequencies of Vibration of Fibre Supported Human Tympanic Membrane Analysed by the Finite Element Method, Clin. Oraloryngol., No. 18 (1993), pp. 375 - 386. Go to original source...

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