Mecklenburg Workshop
Approximation Methods and Fast Algorithms


Monday, September 10

16.00 - 16.30Opening
Chair: Stefan Kunis
16.30 - 17.00 Lutz Kämmerer
Fast Fourier Transform methods for sparse multivariate trigonometric polynomials and approximation properties
17.00 - 17.30Robert Nasdala
Transformed rank-1 lattices for high-dimensional approximation
17.30 - 18.00Matthias Beckmann
Saturation rates for filtered back projection
18.00 - 18.30Kevin Schober
Multivariate directional wavelet systems on the torus

Tuesday, September 11

Chair: Armin Iske
09.00 - 10.00Ole Christensen
Frames and dynamical sampling
10.00 - 10.30Robert J. Kunsch
Solvable integration problems and optimal sample size selection
10.30 - 11.00Coffee break
Chair: Martin Ehler
11.00 - 11.30Dirk Langemann
Mathematical modeling as an approximation problem
11.30 - 12.00Ronny Bergmann
A variational model for data fitting on manifolds by minimizing the acceleration of a Bézier curve
12.00 - 12.30Niklas Wagner
Combining adaptive thinning with graph signal processing
12.30 Lunch
Chair: Ole Christensen
14.30 - 15.30Karla Rost
Restricted inversion of split-Bezoutians
15.30 - 16.00Michael Eiermann
Computing the derivative of a matrix function, with an application to parameter identification problems for the heat equation
16.00 - 16.30Coffee break
Chair: Yurii Kolomoitsev
16.30 - 17.00Woula Themistoclakis
Uniform polynomial approximation on the sphere
17.00 - 17.30Michael Skrzipek
Zeros of polynomials used in frequency analysis
17.30 - 18.00 Andrii L. Shidlich
Direct and inverse approximation theorems of functions in the Orlicz type spaces
18.00 - 18.30 Serhii Stasyuk
Sparse trigonometric approximation of periodic functions with mixed smoothness

Wednesday, September 12

Chair: Frank Filbir
09.00 - 10.00 Lothar Reichel
Generalized Krylov subspace methods for $\ell_p$-$\ell_q$ minimization with application to image restoration
10.00 - 10.30Sara Krause-Solberg
A tractable approach for 1-bit compressed sensing on manifolds
10.30 - 11.00Coffee break
Chair: Ute Schreiber
11.00 - 11.30Florian Boßmann
Shifted rank-1 approximation and its application in Geophysics
11.30 - 12.00Stefan Alexander Kahler
On nonnegative linearization of orthogonal polynomials
12.00 - 12.30Michael Quellmalz
The cone-beam transform and spherical convolution operators
12.30 Lunch
Chair: Michael Skrzipek
14.30 - 15.00Marzieh Hasannasab
Frames and operator representations of frames
15.00 - 15.30Ralf Hielscher
Isomorphic embeddings of quotients of the rotation group
15.30 - 16.00Coffee break
16.00 Walking-tour
19.00 Conference dinner

Thursday, September 13

Chair: Manfred Tasche
09.00 - 10.00Frank Filbir
Phase retrieval from short-time Fourier measurements
10.00 - 10.30Robert Beinert
Phase retrieval of non-uniform splines by Prony's method
10.30 - 11.00Coffee break
Chair: Dirk Langemann
11.00 - 11.30Thomas Peter
A randomized multivariate matrix pencil method
11.30 - 12.00Hanna Veselovska
Bivariate Prony-type polynomials
12.00 - 12.30Dominik Nagel
Condition numbers of Vandermonde matrices with nearly-colliding nodes
12.30 Lunch
Chair: Peter Junghanns
14.30 - 15.30Yurii Kolomoitsev
Approximation by generalized Kantorovich-Kotelnikov sampling operators
15.30 - 16.00Gisela Pöplau
More trouble with tribbles − Investigation on the ion motion towards clearing electrodes in a particle accelerator
16.00 - 16.30Coffee break
Chair: Karla Rost
16.30 - 17.00Sina Bittens
Real sparse fast DCT for vectors with short support
17.00 - 17.30Melanie Kircheis
A frame-theoretical approach to the inversion of the NFFT
17.30 - 18.00 Franziska Nestler
Parameter tuning for the nonuniform FFT and applications
18.00 - 18.30 Manuel Gräf
Nonequispaced fast Fourier transforms on the Grassmannian manifold $G_{2,4}$

Friday, September 14

Chair: Lothar Reichel
09.00 - 10.00Armin Iske
Model-based design of kernel approximation methods for data analysis
10.00 - 10.30Peter Junghanns
An integral equation to minimize airplane drag
10.30 - 11.00Coffee break
Chair: Michael Eiermann
11.00 - 11.30Markus Weimar
On the regularity of solutions to quasi-linear PDEs
11.30 - 12.00Martin Ehler
Discrepancy kernels on the special orthogonal group and the Grassmannian