High order edge elements on simplicial meshes

Francesca Rapetti

ESAIM: Mathematical Modelling and Numerical Analysis (2007)

  • Volume: 41, Issue: 6, page 1001-1020
  • ISSN: 0764-583X

Abstract

top
Low order edge elements are widely used for electromagnetic field problems. Higher order edge approximations are receiving increasing interest but their definition become rather complex. In this paper we propose a simple definition for Whitney edge elements of polynomial degree higher than one. We give a geometrical localization of all degrees of freedom over particular edges and provide a basis for these elements on simplicial meshes. As for Whitney edge elements of degree one, the basis is expressed only in terms of the barycentric coordinates of the simplex.

How to cite

top

Rapetti, Francesca. "High order edge elements on simplicial meshes." ESAIM: Mathematical Modelling and Numerical Analysis 41.6 (2007): 1001-1020. <http://eudml.org/doc/250061>.

@article{Rapetti2007,
abstract = { Low order edge elements are widely used for electromagnetic field problems. Higher order edge approximations are receiving increasing interest but their definition become rather complex. In this paper we propose a simple definition for Whitney edge elements of polynomial degree higher than one. We give a geometrical localization of all degrees of freedom over particular edges and provide a basis for these elements on simplicial meshes. As for Whitney edge elements of degree one, the basis is expressed only in terms of the barycentric coordinates of the simplex. },
author = {Rapetti, Francesca},
journal = {ESAIM: Mathematical Modelling and Numerical Analysis},
keywords = {Maxwell equations; higher order edge elements; simplicial meshes.; simplicial meshes},
language = {eng},
month = {12},
number = {6},
pages = {1001-1020},
publisher = {EDP Sciences},
title = {High order edge elements on simplicial meshes},
url = {http://eudml.org/doc/250061},
volume = {41},
year = {2007},
}

TY - JOUR
AU - Rapetti, Francesca
TI - High order edge elements on simplicial meshes
JO - ESAIM: Mathematical Modelling and Numerical Analysis
DA - 2007/12//
PB - EDP Sciences
VL - 41
IS - 6
SP - 1001
EP - 1020
AB - Low order edge elements are widely used for electromagnetic field problems. Higher order edge approximations are receiving increasing interest but their definition become rather complex. In this paper we propose a simple definition for Whitney edge elements of polynomial degree higher than one. We give a geometrical localization of all degrees of freedom over particular edges and provide a basis for these elements on simplicial meshes. As for Whitney edge elements of degree one, the basis is expressed only in terms of the barycentric coordinates of the simplex.
LA - eng
KW - Maxwell equations; higher order edge elements; simplicial meshes.; simplicial meshes
UR - http://eudml.org/doc/250061
ER -

References

top
  1. M. Ainsworth, Dispersive properties of high order Nédélec/edge element approximation of the time-harmonic Maxwell equations. Philos. Trans. R. Soc. Lond. Ser. A Math. Phys. Eng. Sci.362 (2004) 471–491.  
  2. M. Ainsworth and J. Coyle, Hierarchic finite element bases on unstructured tetrahedral meshes. Int. J. Numer. Meth. Engng.58 (2003) 2103–2130.  
  3. M. Ainsworth, J. Coyle, P.D. Ledger and K. Morgan, Computation of Maxwell eigenvalues using higher order edge elements in three-dimensions. IEEE Trans. Magn.39 (2003) 2149–2153.  
  4. M.A. Armstrong, Basic Topology. Springer-Verlag, New York (1983).  
  5. D. Arnold, R. Falk and R. Winther, Finite element exterior calculus, homological techniques, and applications. Acta Numer.15 (2006) 1–155.  
  6. D. Boffi, M. Costabel, M. Dauge and L.F. Demkowicz, Discrete compactness for the hp version of rectangular edge finite elements. ICES Report04–29 (2004).  
  7. A. Bossavit, Computational Electromagnetism. Academic Press, New York (1998).  
  8. A. Bossavit, Generating Whitney forms of polynomial degree one and higher. IEEE Trans. Magn.38 (2002) 341–344.  
  9. A. Bossavit and F. Rapetti, Whitney forms of higher degree. Preprint.  
  10. V. Girault and P.A. Raviart, Finite element methods for Navier-Stokes equations. Springer-Verlag, Berlin (1986).  
  11. J. Gopalakrishnan, L.E. Garcia-Castillo and L.F. Demkowicz, Nédélec spaces in affine coordinates. ICES Report03–48 (2003).  
  12. R.D. Graglia, D.R. Wilton and A.F. Peterson, Higher order interpolatory vector bases for computational electromagnetics. IEEE Trans. on Ant. and Propag.45 (1997) 329–342.  
  13. R. Hiptmair, Canonical construction of finite elements. Math. Comp.68 (1999) 1325–1346.  
  14. R. Hiptmair, High order Whitney forms. Prog. Electr. Res. (PIER)32 (2001) 271–299.  
  15. G.E. Karniadakis and S.J. Sherwin, Spectral hp element methods for CFD. Oxford Univ. Press, London (1999).  
  16. J.M. Melenk, On condition numbers in hp-FEM with Gauss-Lobatto-based shape functions. J. Comput. Appl. Math.139 (2002) 21–48.  
  17. P. Monk, Finite Element Methods for Maxwell's Equations. Oxford University Press (2003).  
  18. J.C. Nédélec, Mixed finite elements in 3 . Numer. Math.35 (1980) 315–341.  
  19. F. Rapetti and A. Bossavit, Geometrical localization of the degrees of freedom for Whitney elements of higher order. IEE Sci. Meas. Technol.1 (2007) 63–66.  
  20. J. Schöberl and S. Zaglmayr, High order Nédélec elements with local complete sequence properties. COMPEL24 (2005) 374–384.  
  21. J. Stillwell, Classical topology and combinatorial group theory, Graduate Text in Mathematics72. Springer-Verlag (1993).  
  22. J.P. Webb and B. Forghani, Hierarchal scalar and vector tetrahedra. IEEE Trans. on Magn.29 (1993) 1495–1498.  
  23. H. Whitney, Geometric integration theory. Princeton Univ. Press (1957).  

NotesEmbed ?

top

You must be logged in to post comments.

To embed these notes on your page include the following JavaScript code on your page where you want the notes to appear.

Only the controls for the widget will be shown in your chosen language. Notes will be shown in their authored language.

Tells the widget how many notes to show per page. You can cycle through additional notes using the next and previous controls.

    
                

Note: Best practice suggests putting the JavaScript code just before the closing </body> tag.