NuHAG :: TALKS

Talks given at NuHAG events

Banach Gelfand Triples and constructive approximations of continuous problems


  Hans G. Feichtinger

  given at  ws-wpi08-2 (27.11.08 14:25)
  id:  1075
  length:  45min
  status:  accepted
  type:  talk
  LINK-Presentation:  https://nuhagphp.univie.ac.at/dateien/talks/1086_eucetifeislides.pdf
  ABSTRACT:
The setting of the Banach Gelfand triple (S0,L2,SO') allows to describe in a clean functional analytic way how a given continuous problem (such as applying a pseudo-differential operator given by its Kohn-Nirenberg symbol that should be applied to a given L2-function, or finding the spreading function of an operator) can be approximated at least in a qualitative way in a constructive way. The setting involves the use of function spaces, Fourier transforms and generalized functions, and aims at the reduction of a continuous problem to a finite-dimensional setting, which in principle is available for numerical implementation, e.g. using MATLAB or any other mathematical software.


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