Enhance Eigenvalue Approximation by Gradient Recovery 【2012.11.15 10:00am,Z311】 |
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2012-11-13
Colloquia & Seminars
Speaker
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Prof.Zhimin Zhang,Wayne State University, USA
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Title
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Enhance Eigenvalue Approximation by Gradient Recovery
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Time
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2012.11.15 10:00am
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Venue
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Z311
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Abstract
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Eigenvalues of partial differential equations and their numerical approximations are important research subjects, simply because of their wide application in sciences. We propose to enhance the eigenvalue approximation by post-processing the numerical data from a general purpose finite element software. This prost-processing procedure for the second-order differential operators is called gradient recovery and its computational complexity is of order O(N), where N is the number of unknowns. Both self-adjoint and non-self-adjoint operators will be discussed.
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Affiliation
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