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SUMMARY:David Beltran (University of Valencia)
DTSTART:20230125T170000Z
DTEND:20230125T180000Z
DTSTAMP:20260423T052641Z
UID:HAeS/40
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/HAeS/40/">En
 dpoint sparse domination for oscillatory Fourier multipliers</a>\nby David
  Beltran (University of Valencia) as part of Harmonic analysis e-seminars\
 n\n\nAbstract\nSparse domination was first introduced in the context of Ca
 lderón--Zygmund theory. Shortly after\, the concept was successfully exte
 nded to many other operators in Harmonic Analysis\, although many endpoint
  situations have remained unknown. In this talk\, we will present new endp
 oint sparse bounds for oscillatory and Miyachi-type Fourier multipliers us
 ing Littlewood--Paley theory. Furthermore\, the results can be extended to
  more general dilation-invariant classes of multiplier transformations via
  Hardy space techniques\, yielding results\, for instance\, for multi-scal
 e sums of radial bump multipliers.\n
LOCATION:https://researchseminars.org/talk/HAeS/40/
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