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dc.contributor.authorBeck, Joakim
dc.contributor.authorTamellini, Lorenzo
dc.contributor.authorTempone, Raul
dc.identifier.citationBeck J, Tamellini L, Tempone R (2019) IGA-based multi-index stochastic collocation for random PDEs on arbitrary domains. Computer Methods in Applied Mechanics and Engineering 351: 330–350. Available:
dc.description.abstractThis paper proposes an extension of the Multi-Index Stochastic Collocation (MISC) method for forward uncertainty quantification (UQ) problems in computational domains of shape other than a square or cube, by exploiting isogeometric analysis (IGA) techniques. Introducing IGA solvers to the MISC algorithm is very natural since they are tensor-based PDE solvers, which are precisely what is required by the MISC machinery. Moreover, the combination-technique formulation of MISC allows the straightforward reuse of existing implementations of IGA solvers. We present numerical results to showcase the effectiveness of the proposed approach.
dc.description.sponsorshipThe authors would like to thank the Isaac Newton Institute for Mathematical Sciences, Cambridge, for support and hospitality during the programme “Uncertainty quantification for complex systems: theory and methodologies” supported by EPSRC, UK Grant No. EP/K032208/1, where work on this paper was undertaken. Part of this research was carried out while the authors visited the Banff International Research Station for Mathematical Innovation and Discovery (BIRS), for the workshop “Computational Uncertainty Quantification” in October 2017 ( organized by Serge Prudhomme, Roger Ghanem, Mohammad Motamed, and Raúl Tempone. The hospitality and support of BIRS is acknowledged with gratitude. This work was supported by the KAUST, Saudi Arabia Office of Sponsored Research (OSR) under award numbers URF/1/2281-01-01 and URF/1/2584-01-01 in the KAUST Competitive Research Grants Program-Rounds 3 and 4, respectively. Lorenzo Tamellini also received support from the European Union's Horizon 2020 research and innovation program through the Grant No. 680448 “CAxMan”, and by the GNCS 2018 project “Metodi non conformi per equazioni alle derivate parziali”.
dc.publisherElsevier BV
dc.relation.ispartofseriesArXiv e-prints
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Computer Methods in Applied Mechanics and Engineering. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Computer Methods in Applied Mechanics and Engineering, [351, , (2019-03-28)] DOI: 10.1016/j.cma.2019.03.042 . © 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license
dc.subjectIsogeometric analysis
dc.subjectMultilevel methods
dc.subjectSparse grids
dc.subjectStochastic collocation methods
dc.subjectUncertainty quantification
dc.titleIGA-based multi-index stochastic collocation for random PDEs on arbitrary domains
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentApplied Mathematics and Computational Science Program
dc.identifier.journalComputer Methods in Applied Mechanics and Engineering
dc.contributor.institutionConsiglio Nazionale delle Ricerche - Istituto di Matematica Applicata e Tecnologie Informatiche “E. Magenes” (CNR-IMATI), Via Ferrata 1, Pavia, 27100, , Italy
dc.contributor.institutionAlexander von Humboldt Professor in Mathematics of Uncertainty Quantification, RWTH Aachen University, Aachen, 52062, , Germany
kaust.personBeck, Joakim
kaust.personTempone, Raul

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