Name: Matrix Equations and Tensor Techniques IX (METTIX)
Start: 2021-09-09T08:30:00+02:00
End: 2021-09-10T19:00:00+02:00
Location: Perugia

Matrix Equations and Tensor Techniques IX (METTIX)

from Thursday 9 September 2021 (08:30) to Friday 10 September 2021 (19:00)

Monday 6 September 2021
Tuesday 7 September 2021
Wednesday 8 September 2021
Thursday 9 September 2021

08:30 Other: Registration
Registration
08:30 - 08:50

08:50 Other: Opening remarks
Opening remarks
08:50 - 09:00
09:00 From analysis to learning: Tensor-based assessment of latent similarity - Lieven De Lathauwer (KU Leuven)
From analysis to learning: Tensor-based assessment of latent similarity
- Lieven De Lathauwer (KU Leuven)
09:00 - 09:40
09:45 Paper blitz: Robol, Palitta, Kuerschner, Uzunca, Singla
Robol, Palitta, Kuerschner, Uzunca, Singla
09:45 - 10:45
Contributions

09:45 Mixed precision recursive block diagonalization for bivariate functions of matrices - Leonardo Robol (University of Pisa)

09:55 Stein-based preconditioners for weak-constraint 4D-Var - Davide Palitta (Alma Mater Studiorum, Università di Bologna)

10:05 Inexactness in low-rank methods for large matrix equations - Patrick Kürschner (Leipzig University of Applied Sciences (HTWK Leipzig))

10:15 Non-intrusive model order reduction for cross-diffusion systems - Murat Uzunca (Sinop University)

10:25 A distance formula for tuples of doubly commuting matrices - Sushil Singla (Shiv Nadar University)
10:45 Coffee break
Coffee break
10:45 - 11:10
11:10 Talks: De Terán, Ren Cang Li, Addis, Meini, Kirsten
De Terán, Ren Cang Li, Addis, Meini, Kirsten
11:10 - 12:50
Contributions

11:10 On the consistency of $X^\top AX=B$ when $B$ is either symmetric or skew - Fernando De Terán (Universidad Carlos III de Madrid)

11:30 Recent Progresses on Highly Entrywise Accurate Methods For Matrix Equations - Ren-Cang Li (University of Texas at Arlington)

11:50 Elementwise accurate doubling algorithm for shifted M-matrix algebraic Riccati equations - Elena Addis (università di Perugia)

12:10 Palindromic linearization and numerical solution of nonsymmetric algebraic T-Riccati equations - Beatrice Meini

12:30 A matrix-oriented POD-DEIM algorithm applied to semilinear differential matrix equations - Gerhard Kirsten (University of Bologna)
12:50 Lunch break
Lunch break
12:50 - 14:40
14:40 Talks: Werthmann, Klever, Dinh, Köhler, Cardoso
Werthmann, Klever, Dinh, Köhler, Cardoso
14:40 - 16:20
Contributions

14:40 Operator-dependent prolongation and restriction for parameter-dependent multigrid methods using low-rank tensor formats - Tim A. Werthmann (RWTH Aachen University)

15:00 Low-rank tensor uniformization for tumor progression modeling - Maren Klever (RWTH Aachen University)

15:20 A predictor-corrector method in quantized tensor train format for the equilibrium of the chemical master equation - Trang Dinh

15:40 A Successive Divide and Conquer Algorithm for the Unilateral Quadratic Matrix Equation - Martin Köhler (MPI Magdeburg)

16:00 Solving the Discrete Euler-Arnold Equations for the Generalized Rigid Body Motion - Joao Cardoso (Instituto Politécnico de Coimbra - ISEC)
16:20 Coffee break
Coffee break
16:20 - 16:50
16:50 Paper blitz: Persson, Heiland, Matveev, Curto, Petrov
Persson, Heiland, Matveev, Curto, Petrov
16:50 - 17:50
Contributions

16:50 Improved variants of the Hutch++ algorithm for trace estimation - David Persson (EPFL)

17:00 Solving large-scale Riccati equations with indefinite quadratic terms - Jan Heiland (Max Planck Institute for Dynamics of Complex Technical Systems)

17:10 Model order reduction and utilization of the reduced basis for aggregation kinetic equations - Sergey Matveev (Marchuk INM RAS and Lomonosov MSU)

17:20 The Extended Aluthge Transform - Raul Curto (University of Iowa)

17:30 Matrix Completion with Sparse Measurement Errors - Sergey Petrov (INM RAS)
19:30 Social dinner: Social dinner
Social dinner
19:30 - 21:30
Friday 10 September 2021
09:00 Solving power series matrix equations encountered in stochastic processes by means of fixed point iterations - Dario Andrea Bini (Department of Mathematics, University of Pisa)
Solving power series matrix equations encountered in stochastic processes by means of fixed point iterations
- Dario Andrea Bini (Department of Mathematics, University of Pisa)
09:00 - 09:40
09:45 Talks: Moakher, Jeong-Hoon Ju, Kim
Moakher, Jeong-Hoon Ju, Kim
09:45 - 10:45
Contributions

09:45 Solution of the matrix equation for geodesics associated with the Riemannian metric on the space of positive-definite matrices based on the power potential - Maher Moakher (University of Tunis El Manar)

10:05 Optimal Constant for Generalized Diagonal Update Method - Jeong-Hoon Ju

10:25 On Newton Method for the Minimal Positive Solution of a System of Multi-Variable Nonlinear Matrix Equations - Taehyeong Kim
10:45 Coffee break
Coffee break
10:45 - 11:10
11:10 Talks: Dewaele, Evert, Widdershoven, Al Daas, Budzinskiy
Dewaele, Evert, Widdershoven, Al Daas, Budzinskiy
11:10 - 12:50
Contributions

11:10 Computing the condition number of tensor decompositions through Tucker compression - Nick Dewaele (KU Leuven)

11:30 A recursive eigenspace computation for the Canonical Polyadic decomposition - Eric Evert (KU Leuven)

11:50 Multiway data regression using a spline-type tensor decomposition - Raphaël Widdershoven (Stadius - KU Leuven)

12:10 Randomized Algorithms for Rounding the Tensor Train Format - Hussam Al Daas (STFC, Rutherford Appleton Laboratory)

12:30 On the number of elements needed for low-rank tensor train completion - Stanislav Budzinskiy
12:50 Lunch break
Lunch break
12:50 - 14:40
14:40 Talks: Strossner, Brandoni, Cortinovis, Massei
Strossner, Brandoni, Cortinovis, Massei
14:40 - 16:00
Contributions

14:40 Solving PDEs on hypercubes using Chebyshev interpolation - Christoph Strössner (EPFL)

15:00 A Tensor-Train Dictionary Learning algorithm based on spectral proximal alternating linearized minimization - Domitilla Brandoni (Università di Bologna)

15:20 Divide and conquer methods for functions of matrices with banded or hierarchical low-rank structure - Alice Cortinovis (EPFL)

15:40 Hierarchical adaptive low-rank format with applications to discretized PDEs - Stefano Massei (Eindhoven University of Technology)
16:00 Coffee break
Coffee break
16:00 - 16:30
16:30 Talks: Frittelli, Cassini, Morozov, Colley
Frittelli, Cassini, Morozov, Colley
16:30 - 17:50
Contributions

16:30 Matrix-oriented FEM formulation for stationary and time-dependent PDEs on x-normal domains - Massimo Frittelli (Università del Salento)

16:50 A mu-mode integrator for solving evolution equations in Kronecker form - Fabio Cassini (University of Trento)

17:10 Decoupling Dominant Z-eigenvectors of Tensor Kronecker Products - Charles Colley (Purdue University)

17:30 On the low-rank approximations in the Chebyshev norm - Stanislav Morozov (Marchuk Institute of Numerical Mathematics of the Russian Academy of Sciences)
17:50 Other: Closing remarks
Closing remarks
17:50 - 18:00

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