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UID:33f9c914237bdb6bec801eed86b47418
CATEGORIES:Applied and Computational Math Seminar
CREATED:20230329T121311
SUMMARY:New thoughts on inverse screen scattering problem
LOCATION:Hill 525
DESCRIPTION:We describe some new ideas in inverse scattering problem for screens in euc
 lidian spaces. Especially we study the inverse problem including one passiv
 e measurement. By this we mean the physical problem where the transmitter i
 s keeping fixed as well as the energy but the the measurement angle is allo
 wed to vary. In mathematical terms the far field is known only for one fixe
 d incoming wave and fixed wave number. Compared to standard fixed energy in
 verse scattering problem the dimension of the data for us is exactly half o
 f the latter oner. At the end of the talk we give one simple result of this
  kind but by using a method that is promising to solve many more of such pr
 oblems. On our way we let R.H. Mellin to meet J-B. J. Fourier and D. Hilber
 t on a half-line.\nThis is join study with Emilia Blåsten from the Lappeenr
 anta University of Technology, Petri Ola from the University of Helsinki an
 d Sadia Sadique from the Tallinn University of Technology.\n
X-ALT-DESC;FMTTYPE=text/html:<p>We describe some new ideas in inverse scattering problem for screens in 
 euclidian spaces. Especially we study the inverse problem including one pas
 sive measurement. By this we mean the physical problem where the transmitte
 r is keeping fixed as well as the energy but the the measurement angle is a
 llowed to vary. In mathematical terms the far field is known only for one f
 ixed incoming wave and fixed wave number. Compared to standard fixed energy
  inverse scattering problem the dimension of the data for us is exactly hal
 f of the latter oner. At the end of the talk we give one simple result of t
 his kind but by using a method that is promising to solve many more of such
  problems. On our way we let R.H. Mellin to meet&nbsp;J-B. J. Fourier and D
 .&nbsp;Hilbert on a half-line.</p><p>This is join study with Emilia Blåsten
  from the Lappeenranta University of Technology, Petri Ola from the Univers
 ity of Helsinki and Sadia Sadique from the Tallinn University of Technology
 .</p>
CONTACT:Lassi Päivärinta (Tallinn University of Technology)
DTSTAMP:20260827T005738
DTSTART;TZID=America/New_York:20230407T150000
DTEND;TZID=America/New_York:20230407T160000
SEQUENCE:0
TRANSP:OPAQUE
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