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SUMMARY:Zolotarev numbers and inverse nonuniform discrete Fourier transfor
 ms - Heather Wilber (University of Washington)
DTSTART:20230728T123000Z
DTEND:20230728T133000Z
UID:TALK202780@talks.cam.ac.uk
DESCRIPTION:Zolotarev's rational approximation problems are relevant in a 
 number of applications in modern computational science\, including matrix 
 function evaluation\, eigendecompositions\, the solving of matrix equation
 s\, and the solving of special linear systems. &nbsp\;We give an overview 
 of the Zolotarev problems and\, relatedly\, the Zolotarev numbers\, and we
  highlight recent work where Zolotarev numbers have been applied to design
  a superfast method for computing inverse nonuniform discrete Fourier tran
 sforms. This work is joint with Ethan Epperly and Alex Barnett.
LOCATION:Seminar Room 1\, Newton Institute
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