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SUMMARY:Regularisation by non-standard Krylov methods - Silvia Gazzola (Un
 iversity of Bath)
DTSTART:20230405T140000Z
DTEND:20230405T150000Z
UID:TALK199084@talks.cam.ac.uk
DESCRIPTION:This talk is about some so-called `hybrid projection methods'\
 , i.e.\, regularisation methods that combine iterative regularisation meth
 ods (such as Krylov subspace methods) and variational regularisation metho
 ds. Hybrid projection methods based on some standard Krylov subspace metho
 ds (such as LSQR\, LSMR\, and GMRES) and standard Tikhonov regularisation 
 are well-established for linear inverse problems. The emphasis of this tal
 k will be on novel hybrid projection methods that (1) exploit flexible Kry
 lov subspace methods coupled with some generic p-norm regularization\, or 
 (2) exploit inexact Krylov subspace methods to handle separable nonlinear 
 inverse problems.
LOCATION:Seminar Room 2\, Newton Institute
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