Fachbereich Mathematik 
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Dr. Matthias Beckmann

Foto Department of Mathematics
Center for Optimization and Approximation
Bundesstraße 55 (Geomatikum)
20146 Hamburg

Room T07
Tel.: 040 42838-6240
Fax: 040 42838-5117
E-Mail: matthias.beckmann (at) uni-hamburg.de

Since October 2014 I am a research assistant in Prof. Dr. Armin Iske's working group at the Center for Optimization and Approximation.

Office hour at Geomatikum (Room T07):
by appointment via e-mail

Office hour at TUHH (SBC 3-E, Room 3.080):
Fri 13:15-14:15


Dissertation


Publications

Matthias Beckmann and Armin Iske (2018)
Error Estimates and Convergence Rates for Filtered Back Projection.
Mathematics of Computation. Published electronically: April 30, 2018.
DOI: 10.1090/mcom/3343.

Matthias Beckmann and Armin Iske (2017)
Sobolev Error Estimates for Filtered Back Projection Reconstructions.
IEEE 2017 International Conference on Sampling Theory and Applications (SampTA), 2017, 251-255.
DOI: 10.1109/SAMPTA.2017.8024439.

Matthias Beckmann and Armin Iske (2017)
Approximation of Bivariate Functions from Fractional Sobolev Spaces by Filtered Back Projection.
Hamburger Beiträge zur Angewandten Mathematik (HBAM) 2017-05, February 2017.

Matthias Beckmann and Armin Iske (2016)
On the Error Behaviour of the Filtered Back Projection.
Proc. Appl. Math. Mech. (PAMM) 16(1), 2016, 833-834.
DOI: 10.1002/pamm.201610405.

Matthias Beckmann and Armin Iske (2016)
Analysis of the Inherent Reconstruction Error in Filtered Back Projection.
Hamburger Beiträge zur Angewandten Mathematik (HBAM) 2016-01, February 2016.

Matthias Beckmann and Armin Iske (2015)
Error Estimates for Filtered Back Projection.
IEEE 2015 International Conference on Sampling Theory and Applications (SampTA), 2015, 553-557.
DOI: 10.1109/SAMPTA.2015.7148952.


Conferences, Workshops and Scientific Talks

Mecklenburg Workshop "Approximation Methods and Fast Algorithms" (MW2018)
September 10 - 14, 2018, University of Lübeck, Hasenwinkel, Germany.
Talk: Saturation Rates for Filtered Back Projection.

SIAM Conference on Imaging Science (IS2018)
June 05 - 08, 2018, Bologna, Italy.
Talk: Error Analysis for Filtered Back Projection Reconstructions in Fractional Sobolev Spaces.

YR Meeting & CSE Workshop "Recent Trends and Future Developments in Computational Science & Engineering" (CSE2018)
March 26 - 29, 2018, Technical University of Hamburg, Plön, Germany.
Talk: Saturation Rates for Filtered Back Projection Reconstructions.

89. Annual Meeting of GAMM (GAMM2018)
March 19 - 23, 2018, Munich, Germany.
Talk: Saturation Rates for Filtered Back Projection Reconstructions.

GAMM-MSIP Workshop on Mathematical Signal Processing and Data Analysis (GAMM-MSIP2017)
September 18 - 20, 2017, University of Bremen, Bremen, Germany.
Talk: Error Analysis for Filtered Back Projection Reconstructions in Fractional Sobolev Spaces.

12th International Conference on Sampling Theory and Applications (SampTA2017)
July 03 - 07, 2017, Tallinn University, Tallinn, Estonia.
Talk: Sobolev Error Estimates for Filtered Back Projection Reconstructions.

Oberseminar: Mathematics of Data Analysis (TUM2017)
May 18, 2017, Technical University of Munich, Munich, Germany.
Talk: Sobolev Error Estimates for Filtered Back Projection Reconstructions.
Invited by Dr. Frank Filbir & Prof. Dr. Felix Krahmer

88. Annual Meeting of GAMM (GAMM2017)
March 06 - 10, 2017, Weimar, Germany.
Talk: Error Analysis for Filtered Back Projection Reconstructions in Fractional Sobolev Spaces.

IM-Workshop on Signals, Images, and Approximation (IM2017)
February 27 - March 03, 2017, Bernried, Germany.
Talk: Error Analysis for Filtered Back Projection Reconstructions in Fractional Sobolev Spaces.

27. Rhein-Ruhr-Workshop on Applied Analysis (RRW2017)
January 27 - 28, 2017, Bestwig, Germany.
Poster: Analysis of the Inherent Reconstruction Error in Filtered Back Projection.

International Workshop on Mathematical Imaging and Emerging Modalities (MIEM2016)
June 27 - 30, 2016, University of Osnabrück, Osnabrück, Germany.
Talk: Analysis of the Inherent Reconstrution Error in Filtered Back Projection.

SIAM Conference on Imaging Science (IS2016)
May 23 - 26, 2016, Albuquerque, NM, USA.
Talk: Error Estimates and Convergence Rates for Filtered Back Projection.

YR Meeting & CSE Workshop "Recent Trends and Future Developments in Computational Science & Engineering" (CSE2016)
March 21 - 24, 2016, University of Hamburg, Plön, Germany.
Talk: On the Error Behaviour of the Filtered Back Projection.

Joint Annual Meeting of DMV and GAMM (DMV2016)
March 07 - 11, 2016, Braunschweig, Germany.
Talk: On the Error Behaviour of the Filtered Back Projection.

IM-Workshop on Signals, Images, and Approximation (IM2016)
February 29 - March 04, 2016, Bernried, Germany.
Talk: Error Estimates and Convergence Rates for Filtered Back Projection.

26. Rhein-Ruhr-Workshop on Applied Analysis (RRW2016)
January 29 - 30, 2016, Bestwig, Germany.
Talk: Fehlerabschätzungen und Konvergenzraten für die gefilterte Rückwärtsprojektion.

ICERM Workshop "Computational and Analytical Aspects of Image Reconstruction" (CAAIR2015)
July 13 - 17, 2015, Brown University, Providence, RI, USA.
Poster: Error Estimates for Filtered Back Projection.

11th International Conference on Sampling Theory and Applications (SampTA2015)
May 25 - 29, 2015, American University, Washington, DC, USA.
Talk: Error Estimates for Filtered Back Projection.

YR Meeting & CSE Workshop "Recent Trends and Future Developments in Computational Science & Engineering" (CSE2015)
March 09 - 13, 2015, Christian-Albrechts University of Kiel, Plön, Germany.
Talk: L² - Error Estimates for Filtered Back Projection.

25. Rhein-Ruhr-Workshop on Applied Analysis (RRW2015)
January 30 - 31, 2015, Bestwig, Germany.
Talk: Fehlerabschätzungen für die gefilterte Rückwärtsprojektion.


Teaching

WiSe 2018/2019: (Pro)Seminar on Approximation (with Prof. Dr. Armin Iske)

WiSe 2018/2019: Exercise classes in Differential Equations I (TUHH)

WiSe 2018/2019: Exercise classes in Analysis III (TUHH)

SoSe 2018: Exercise classes in Analysis II (TUHH)

WiSe 2017/2018: Exercise class in Approximation

WiSe 2017/2018: Exercise classes in Analysis I (TUHH)

SoSe 2017: Exercise classes in Complex Functions (TUHH)

WiSe 2016/2017: Exercise class in Approximation

WiSe 2016/2017: Exercise classes in Analysis I (TUHH)

SoSe 2016: Exercise classes in Complex Functions (TUHH)

WiSe 2015/2016: Exercise class in Approximation

WiSe 2015/2016: Exercise classes in Differential Equations I (TUHH)

SoSe 2015: Exercise classes in Analysis II (TUHH)

WiSe 2014/2015: Exercise class in Approximation


 
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