University of Göttingen - Institute for Numerical and Applied Mathematics
Katrin Wannenwetsch
Current projects
Efficient function reconstruction using eigenfunctions of linear operators (2014-2017)
DFG project
Teaching
Research seminar: Numerical Analysis (English) (WS 2016/2017)
Thursday 12.30 - 14.00, Seminarraum NAM (2 SWS)
Research seminar: Numerical Analysis (English) (SS 2016)
Thursday, 12.30 - 14.00, Seminarraum NAM (2 SWS)
Research seminar: Numerical Analysis (English) (WS 2015/2016)
Thursday 12.30 - 14.00, Seminarraum NAM (2 SWS)
Research seminar: Numerical Analysis (English) (SS 2015)
Monday, 12.30 - 14.00, Seminarraum NAM (2 SWS)
Research seminar: Numerical Analysis (English) (WS 2014/2015)
Thursday 12.30 - 14.00, Seminarraum NAM (2 SWS)
Research seminar: Numerical Analysis (English) (SS 2014)
Thursday 12.30 - 14.00, Seminarraum NAM (2 SWS)
Exercises: Mathematik für Informatik-Anfänger/innen II (MafIA II) - Übung 3 (German) (SS 2014)
Wednesday, 8.15 - 9.45, MN 68 (2 SWS)
Research seminar: Numerical Analysis (English) (WS 2013/2014)
Thursday 12.30 - 14.00, Seminarraum NAM (2 SWS)
Exercises: Mathematik für Informatik-Anfänger/innen I (MafIA I) - Übung 1 (German) (WS 2013/2014)
Wednesday, 8.15 - 9.45, MN 68 (2 SWS)
Exercises: Funktionalanalysis - Übung (German) (SS 2013)
Wednesday, 10.15 - 11.45, Seminarraum NAM (2 SWS)
Research seminar: Numerical Analysis (English) (SS 2013)
Wednesday 12.30 - 14.00, Seminarraum NAM (2 SWS)
Research seminar: Numerical Analysis (English) (WS 2012/2013)
Thursday 12.30 - 14.00, Seminarraum NAM (2 SWS)
Workshops
Approximation Methods and Data Analysis (Talk)
September 5 - 9, 2016 in Hasenwinkel
Joint Annual Meeting of GAMM and DMV 2016 (Talk)
March 7 - 11, 2016 in Braunschweig
26. Rhein-Ruhr-Workshop
January 29 - 30, 2016 in Bestwig
Dagstuhl Seminar 15251: Sparse modelling and multi-exponential analysis (Talk)
June 15 - 19, 2015 in Schloss Dagstuhl, Germany
Dolomites Research Week on Approximation
September 08 - 12, 2014 in Canazei, Italy
Mathematical Signal Processing and Phase Retrieval (Talk)
September 01 - 03, 2014 in Göttingen
24. Rhein-Ruhr-Workshop (Talk)
January 31 - February 01, 2014 in Bestwig
First French-German Mathematical Image Analysis Conference
January 13 - 15, 2014 in Paris
Final Colloquium of the Research Training Group 1023
November 29 - 30, 2013 in Göttingen
Statistical Issues in Compressive Sensing
November 11 - 13, 2013 in Göttingen
Summer School on Applied Analysis 2013
September 23 - 27, 2013 in Chemnitz
23. Rhein-Ruhr-Workshop
February 01 - 02, 2013 in Bestwig
Goslar Workshop 2012 (Talk)
October 17 -19, 2012 in Goslar (Annual Workshop of the RTG 1023)
Advances in Mathematical Image Processing
September 04 - 06, 2012 in Göttingen
Publications
Deterministic sparse FFT for M-sparse vectors
Gerlind Plonka, Katrin Wannenwetsch, Annie Cuyt, Wen-Shin Lee
University of Göttingen, Institute for Numerical and Applied Mathematics, 2017 (revised preprint as download)
A sparse Fast Fourier algorithm for real nonnegative vectors
Gerlind Plonka, Katrin Wannenwetsch
Journal of Computational and Applied Mathematics 321, 532-539., 2017 (preprint as download)
Deterministic Sparse FFT Algorithms
Katrin Wannenwetsch
Dissertation, 2016 (published online on 30 September 2016, http://hdl.handle.net/11858/00-1735-0000-002B-7C10-0)
A deterministic sparse FFT algorithm for vectors with small support
Gerlind Plonka, Katrin Wannenwetsch
Numerical Algorithms 71(4), 889-905, 2016 (preprint as download)
Deterministic sparse FFT algorithms
Gerlind Plonka, Katrin Wannenwetsch
Proc. Appl. Math. Mech. Volume 15, Issue 1, pp. 667-668, October 2015 (DOI: 10.1002/pamm.201510323, preprint as download)
A deterministic sparse FFT algorithm for vectors with short support
Gerlind Plonka, Katrin Wannenwetsch
Oberwolfach Reports, Volume 38, pp. 41-44, 2015
Software
Sparse FFT (small support)
A new deterministic sparse FFT algorithm for vectors with small support.
Katrin Wannenwetsch, Gerlind Plonka
Sparse FFT (real non-negative)
A new deterministic sparse FFT algorithm for real non-negative vectors.
Katrin Wannenwetsch, Gerlind Plonka
Dr. Katrin Wannenwetsch