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h- p Spectral element methods for three dimensional elliptic problems on non-smooth domains, Part-II: Proof of stability theorem

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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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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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Correspondence to AKHLAQ HUSAIN.

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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

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