Abstract
This is the second of a series of papers devoted to the study of h-p spectral element methods for three dimensional elliptic problems on non-smooth domains. The present paper addresses the proof of the main stability theorem. We assume that the differential operator is a strongly elliptic operator which satisfies Lax–Milgram conditions. The spectral element functions are non-conforming. The stability estimate theorem of this paper will be used to design a numerical scheme which give exponentially accurate solutions to three dimensional elliptic problems on non-smooth domains and can be easily implemented on parallel computers.
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Babuska I and Guo B, Regularity of the solutions for elliptic problems on non-smooth domains in R 3, Part I: Countably normed spaces on polyhedral domains, Proc. Royal Society of Edinburgh 127A (1997) 77–126
Babuska I and Guo B, Regularity of the solutions for elliptic problems on non-smooth domains in R 3, Part II: Regularity in neighbourhoods of edges, Proc. Royal Society of Edinburgh 127A (1997) 517–545
Babuska I and Guo B, Approximation peroperties of the h-p version of the finite element method, Comp. Methods Appl. Mech. Engrg. 133 (1996) 319–346
Babuska I, Guo B, Andersson B, Oh H S and Melenk J M, Finite element methods for solving problems with singular solutions, J. Comp. Appl. Math. 74 (1996) 51–70
Dutt P, Akhlaq Husain, Vasudeva Murthy A S and Upadhyay C S, h-p Spectral element methods for three dimensional elliptic problems on non-smooth domains, Part-I: Regularity estimates and stability theorem, submitted for publication
Dutt P, Akhlaq Husain, Vasudeva Murthy A S and Upadhyay C S, h-p Spectral element methods for three dimensional elliptic problems on non-smooth domains, Appl. Math. Comput. 234 (2014) 13–35
Dutt P and Tomar S, Stability estimates for h-p spectral element methods for general elliptic problems on curvilinear domains, Proc. Indian Acad. Sci. (Math. Sci.) 113 (4) (2003) 395–429
Grisvard P, Elliptic problems in non-smooth domains, Monographs and Studies in Mathematics 24 (1985) (Pitman Advanced Publishing Program)
Guo B, h-p version of the finite element method in R 3, Theory and algorithm, in: Proceeding of ICOSAHOM’95 (eds) A Ilin and R Scott (1995) pp. 487–500
Guo B, Optimal finite element approaches for elasticity problems on non-smooth domains in R 3, in: Computaional Mechanics’s (1995) (Springer) vol. 1, pp. 427–432
Guo B and Oh S H, The method of auxiliary mapping for the finite element solutions of elliptic partial differential equations on non-smooth domains in R 3, available at http://home.cc.umanitoba.ca/~guo/publication.htm (1995)
Guo B, The h-p version of the finite element method for solving boundary value problems in polyhedral domains, in: Boundary value problems and integral equations in non-smooth domains (eds) M Costabel, M Dauge and C Nicaise (1994) (Marcel Dekker Inc) pp. 101–120
Husain Akhlaq, h-p spectral element methods for three dimensional elliptic problems on non-smooth domains using parallel computers, Ph.D. Thesis, IIT Kanpur, India, Reprint available at arXiv:1110.2316 (2011)
Wolfgang Kuhnel, Differential geometry, curves-surfaces-manifolds (2005) (AMS, Student Mathematical Library) p. 96
Acknowledgements
The authors would like to thank Prof. Rukmini Dey for her helpful discussions in the preparation of the manuscript. The second author is thankful to the Council of Scientific and Industrial Research (CSIR), New Delhi for supporting this research work. This work was carried out at the Department of Mathematics, Indian Institute of Technology, Kanpur.
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DUTT, P., HUSAIN, A., VASUDEVA MURTHY, A.S. et al. h- p Spectral element methods for three dimensional elliptic problems on non-smooth domains, Part-II: Proof of stability theorem. Proc Math Sci 125, 413–447 (2015). https://doi.org/10.1007/s12044-015-0239-2
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DOI: https://doi.org/10.1007/s12044-015-0239-2
Keywords
- Spectral element method
- vertex singularity
- edge singularity
- vertex-edge singularity
- modified coordinates
- geometric mesh
- quasi uniform mesh
- stability estimate.