Projection-tree reduced-order modeling for fast N-body computations

•A new class of reduced order models is presented: projection-tree reduced-order modeling (PTROM).•The method combines tree-algorithms, dimensionality compression, and hyper-reduction.•The PTROM is tested on the N-body fluid-dynamics Biot-Savart law.•Numerical experiments show the PTROM out-performs...

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Bibliographic Details
Published in:	Journal of computational physics Vol. 459; p. 111141
Main Authors:	Rodriguez, Steven N., Iliopoulos, Athanasios P., Carlberg, Kevin T., Brunton, Steven L., Steuben, John C., Michopoulos, John G.
Format:	Journal Article
Language:	English
Published:	Cambridge Elsevier Inc 15.06.2022 Elsevier Science Ltd
Subjects:	Acceleration Barnes–Hut Complexity Computational physics GNAT Hyper-reduction Kernels LSPG Multipoles Projection Reduced order models Reduced-order modeling Reduction Tensors Tree algorithms Tree algorithms Hyper-reduction Barnes–Hut GNAT Reduced-order modeling LSPG
ISSN:	0021-9991, 1090-2716
Online Access:	Get full text
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