All talks will be on Thursdays at 11:00am in Ewing Hall, Room 336.
Want to suggest a speaker? Send email to Francisco-Javier Sayas
Information about the Courtyard Newark - University of Delaware Hotel
|Yanlai Chen, University of Massachusetts at Dartmouth||Yanlai Chen, University of Massachusetts at Dartmouth||Ewing 336||Title: <br>
Reduced Basis Method: Applications, recent improvements on efficiency and robustness, and a new iterative scheme
Models of reduced computational complexity is indispensable in scenarios where a large number of numerical solutions to a parametrized problem are desired in a fast/real-time fashion. Thanks to an offline-online procedure and the recognition that the parameter-induced solution manifolds can be well approximated by finite-dimensional spaces, reduced basis method (RBM) and reduced collocation method (RCM) can improve efficiency by several orders of magnitudes. The accuracy of the RBM/RCM solutions is maintained through a rigorous a posteriori error estimator whose efficient and accurate evaluation is critical.
After a brief introduction of the RBM, this talk will show our recent work on novel approaches for speeding up the offline portion of the approaches by around 6-fold, and new residual-based and residual-free strategies for circumventing error stagnation that is traditional of the classical RBM. If time permits, we will introduce a new iterative scheme inspired by RBM that outperforms conjugate gradient method with multigrid as a preconditioner for linear systems discretizing Poisson's equation.
||4/12/2018 3:00:00 PM||4/12/2018 4:00:00 PM||False|
|Ana Maria Soane, U.S. Naval Academy||Ana Maria Soane, U.S. Naval Academy||EWG 336||Title: TBA <br></br>
Abstract: TBA||4/19/2018 3:00:00 PM||4/19/2018 4:00:00 PM||False|
|DelMar Numerics Day 2018||DelMar Numerics Day 2018||TBA||Keynote speaker: Mark Ainsworth, Brown University||5/5/2018 12:00:00 AM||5/5/2018 11:59:00 PM||True|
|Michael Neilan, University of Pittsburgh||Michael Neilan, University of Pittsburgh||EWG 336||Title: TBA <br></br>
Abstract: TBA||5/17/2018 3:00:00 PM||5/17/2018 4:00:00 PM||False|
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