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Condition numbers of Vandermonde quasimatrices
Nick Trefethen, April 2022
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The generalised QR factorisation and constrained least squares
Nick Hale, March 2022
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Backward stability of quasimatrix QR factorization
Nick Hale and Nick Trefethen, March 2022
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Vandermonde with Arnoldi
Pablo Brubeck, Yuji Nakatsukasa, and Nick Trefethen, January 2020
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Eigenvalue Landscapes
Nick Trefethen, November 2019
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Why is the field of values so nonsmooth?
Nick Trefethen, July 2019
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Analyticity at eigenvalue near-crossings
Nick Trefethen, November 2017
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Computing the analytic SVD
Yuji Nakatsukasa, Vanni Noferini, and Nick Trefethen, July 2016
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Computing eigenvalues by sampling the determinant
Jared Aurentz and Nick Trefethen, November 2014
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Crouzeix's conjecture
Nick Trefethen and Michael Overton, October 2013
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Spectral radius of the SOR iteration matrix
Nick Trefethen, October 2012
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Mercury-Earth conjunctions
Tonatiuh Sanchez-Vizuet and Matthew Moye, June 2012
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Transient growth
Nick Trefethen, July 2011
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Resolvent norm on the imaginary axis
Nick Trefethen, May 2011
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Field of values and numerical abscissa
Nick Trefethen, November 2010
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Nonnormality quiz from Trefethen and Embree
Nick Trefethen, October 2010
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Eigenvalue level repulsion
Nick Trefethen, October 2010
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Condition numbers of various bases
Nick Trefethen, September 2010