Results 81 to 90 of about 231,311 (211)

Numerical linear algebra in data assimilation

GAMM-Mitteilungen, 2020
AbstractData assimilation is a method that combines observations (ie, real world data) of a state of a system with model output for that system in order to improve the estimate of the state of the system and thereby the model output. The model is usually represented by a discretized partial differential equation.
openaire   +2 more sources

Palindromic linearization and numerical solution of nonsymmetric algebraic $$T$$-Riccati equations [PDF]

, 2022
Peter Benner, Bruno Iannazzo, Beatrice Meini, Davide Palitta   +3 more
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Asymptotic Analysis of Sampling Estimators for Randomized Numerical Linear Algebra Algorithms [PDF]

, 2020
Ping Ma, Xinlian Zhang, Xin Xing, Jingyi Ma, Michael W. Mahoney   +4 more
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A Riemann--Hilbert approach to the perturbation theory for orthogonal polynomials: Applications to numerical linear algebra and random matrix theory [PDF]

, 2021
Xiucai Ding, Thomas Trogdon
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Geometric Characterization of the Numerical Range of Parallel Sum of Two Orthogonal Projections

Journal of Mathematics
Let H be a complex separable Hilbert space and BH be the algebra of all bounded linear operators from H to H. Our goal in this article is to describe the closure of numerical range of parallel sum operator P:PQ for two orthogonal projections P and Q in ...
Weiyan Yu, Ran Wang, Chen Zhang
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Minimizing Communication in Numerical Linear Algebra [PDF]

, 2011
Grey Ballard, James Demmel, Olga Holtz, Oded Schwartz   +3 more
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An Accelerated Sixth-Order Procedure to Determine the Matrix Sign Function Computationally

Mathematics
The matrix sign function has a key role in several applications in numerical linear algebra. This paper presents a novel iterative approach with a sixth order of convergence to efficiently compute this function.
Shuai Wang, Ziyang Wang, Wu Xie, Yunfei Qi, Tao Liu   +4 more
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Spectral Function Space Learning and Numerical Linear Algebra Networks for Solving Linear Inverse Problems [PDF]

Andrea Aspri, Leon Frischauf, Otmar Scherzer   +2 more
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Photonic co-processors in HPC: Using LightOn OPUs for Randomized Numerical Linear Algebra [PDF]

, 2021
Daniel Hesslow, Alessandro Cappelli, Igor Carron, Laurent Daudet, Raphaël Lafargue, Kilian Müller, Ruben Ohana, Gustave Pariente, Iacopo Poli   +8 more
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A survey of numerical linear algebra methods utilizing mixed-precision arithmetic

, 2021
Ahmad Abdelfattah, Hartwig Anzt, Erik G. Boman, Erin Carson, Terry Cojean, Jack Dongarra, Alyson Fox, Mark Gates, Nicholas J. Higham, Xiaoye Sherry Li, Jennifer Loe, Piotr Łuszczek, Srikara Pranesh, Siva Rajamanickam, Tobias Ribizel, Barry Smith, Kasia Świrydowicz, Stephen Thomas, Stanimire Tomov, Yaohung M. Tsai, Ulrike Meier Yang   +20 more
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