Speaker: Vanni Noferini Affiliation: Aalto University, Finland Time: Wednesday, 11/12/2019, 11:00 Place: Aula Seminari, Dipartimento di Matematica.
Title: Wilkinson's bus: weak condition numbers, with applications
(Joint work with Martin Lotz) Simple eigenvalues of singular matrix polynomials have infinite condition number. However, vanilla eigensolvers (blind to the singular structure) are often able to compute these eigenvalues to machine precision. We propose and analyse a more sophisticated theory of condition, with higher predicting power than the existing ones. Don't miss this talk if you would like to hear the solution of the mystery of the ill posed eigenvalue problems that are in practice solved with remarkable accuracy!
https://www.dm.unipi.it/webnew/it/seminari/wilkinsons-bus-weak-condition-num...
Vi ricordo il seminario di oggi alle 11, e la cena di stasera (ritrovo alle 20.00 davanti al dipartimento di matematica per chi avesse bisogno di un passaggio).
Leonardo.
On Mon, 2019-12-09 at 08:29 +0100, Leonardo Robol wrote:
Speaker: Vanni Noferini Affiliation: Aalto University, Finland Time: Wednesday, 11/12/2019, 11:00 Place: Aula Seminari, Dipartimento di Matematica.
Title: Wilkinson's bus: weak condition numbers, with applications
(Joint work with Martin Lotz) Simple eigenvalues of singular matrix polynomials have infinite condition number. However, vanilla eigensolvers (blind to the singular structure) are often able to compute these eigenvalues to machine precision. We propose and analyse a more sophisticated theory of condition, with higher predicting power than the existing ones. Don't miss this talk if you would like to hear the solution of the mystery of the ill posed eigenvalue problems that are in practice solved with remarkable accuracy!
https://www.dm.unipi.it/webnew/it/seminari/wilkinsons-bus-weak-condition-num...
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Leonardo Robol