79 citations · 258 across the 61 of their papers we have counts for
4 papers · 1 filter
A complex-projected Rayleigh quotient iteration for targeting interior eigenvalues
Nils Friess, Alexander D. Gilbert, Robert Scheichl
We introduce a new Projected Rayleigh Quotient Iteration aimed at improving the convergence behaviour of classic Rayleigh Quotient iteration (RQI) by incorporating approximate info…
Improving Met Office Weather and Climate Forecasts with Bespoke Multigrid Solvers
Andrew Malcolm, Eike H. Müller, Robert Scheichl
At the heart of the Met Office climate and weather forecasting capabilities lies a sophisticated numerical model which solves the equations of large-scale atmospheric flow. Since t…
Lowering the Entry Bar to HPC-Scale Uncertainty Quantification
Linus Seelinger, Anne Reinarz, Jean Benezech +3
Treating uncertainties in models is essential in many fields of science and engineering. Uncertainty quantification (UQ) on complex and computationally costly numerical models nece…
Multilevel Monte Carlo methods for stochastic convection-diffusion eigenvalue problems
Tiangang Cui, Hans De Sterck, Alexander D. Gilbert +2
We develop new multilevel Monte Carlo (MLMC) methods to estimate the expectation of the smallest eigenvalue of a stochastic convection-diffusion operator with random coefficients.…