# Talks and Posters

### 2019

2019

- Matrices and tensors for polynomial rootfinding, 8th Workshop on Matrix Equations and Tensor Techniques - METT-VIII, Magdeburg, 06--08.11.2019
- Finding common roots of systems of polynomials with matrix and tensor methods, Workshop on Low-Rank Models and Applications, Mons, Belgium, 12--13.09.2019
- [Poster] Multivariate polynomial root finding with tensor techniques, ICIAM19
- Inexact rational Krylov methods for large matrix equations, International Congress on Industrial and Applied Mathematics (ICIAM 2019), Valencia, Spain, 15.-19.07.2019
- Tensor methods for finding roots of polynomials, workshop on Identification, simulation and control of complex dynamical systems from Data, Tegernsee, 08.-11.05.2019
- [Poster] Multivariate polynomial root finding with tensor techniques, Low-rank Optimization and Applications, Leipzig, 01.-05.04.2019
- Low-rank methods for matrix equations arising in model order reduction, CASA Colloquium, TU Eindhoven, the Netherlands, 20.02.2019

### 2018

2018

- Solving large matrix equations arising in connectome regression,
*GAMM-ANLA Workshop*, Höör, Sweden, 10-12.10.2018 - Inexact rational Krylov methods for large matrix equations, NUMA Seminar, KU Leuven, Belgium, 27.09.2018
- Solving Large Matrix Equations Arising in Computational Neuroscience, seminar talk at EPF Lausanne, Switzerland, 05.09.2018
- [Poster] Sherman-Morrison-Woodbury Formula for Large Matrix Equations, EURASIP Summer School Tensor-Based Signal Processing, Leuven, Belgium, 27.-31.08.2018
- Inexact linear solves in low-rank methods for large-scale matrix equations,
*6th IMA Conference on Numerical Linear Algebra and Optimization*, Birmingham, UK, 27.-29.06.2018 - A comparison of rational Krylov and related low-rank methods for large Riccati equations,
*SIAM Conference on Applied Linear Algebra*, Hong Kong, May 04.-08.05.2018 - Inexact rational Krylov subspace methods for matrix equations,
*Bath Numerical Analysis Seminar*, Bath, UK, 21.02.2018 and GAMM Annual Meeting, TU Munich, 19.-23.03.2018

### 2017

2017

- Matrix equations in time- & frequency limited model reduction, SciCADE2017, Bath, UK, 11.-15.09.2017.
- Balanced truncation MOR with time- & frequency restrictions, LMS-EPSRC Durham Symposium Model Order Reduction, Durham, UK, 07-17.08.2017.
- Numerical computation of low-rank factors of time- and frequency-limited Gramians, Householder Symposium XX, Virginia Tech, Blacksburg, USA, 18.-23.06.2017.
- Large generalized Sylvester equations with additional low-rank terms,
*METT VII - 7th Workshop on Matrix Equations and Tensor Techniques*, Pisa, Italy, 13.-14.02.2017 - Time- and frequency-limited balanced truncation for large-scale systems,
*3rd Workshop on Model Reduction of Complex Dynamical Systems*, Odense, Denmark, 11.-13.01.2017

### 2016

2016

- Yet another low-rank method for large algebraic Riccati equations,
*GAMM-ANLA Workshop*, Hamburg, September 15-16. , 2016 - Minimizing the Residual Norm in the ADI Iteration for Large Lyapunov Equations,
*5th IMA Conference on Numerical Linear Algebra and Optimization*, Birmingham, UK, September 7-9, 2016 - Inexact and preconditioned linear solves in iterative eigenvalue methods,
*Computational Methods in Applied Mathematics (CMAM-7)*, Jyväskylä, Finland, July 31 - August 6, 2016 - A numerical comparison of algorithms for large-scale, algebraic Riccati equations,
*20th ILAS Conference*, Leuven, Belgium, July 11-17., 2016 - Matrix equations which include matrix functions and their application to model reduction,
*Tegernsee workshop "Computational Methods for High-Dimensional Problems "*, Tegernsee, 3. April, 2016 - Model Order Reduction and Large-scale Matrix Equations,
*Bath Numerical Analysis Seminar*, Bath, UK, April 15, 2016 - The benefits of restricting balanced truncation to small time or frequency intervals, GAMM & DMV Annual Meeting, TU Braunschweig, Germany, March 07-11., 2016

### 2015

2015

- Modellreduktion mit frequenzbegrenzten Gramschen (german), GMA Workshop 1.30, Anif, Austria, September 24-25., 2015
- Nearly optimal automatic shifts for the low-rank ADI iteration, 5th workshop on matrix equations and tensor techniques, Bologna, Italy, September 21-22., 2015
- Low-rank Approximations of Frequency-limited Gramians, GAMM-ANLA Workshop, Magdeburg, Germany, July 09-10., 2015
- Krylov Subspace Methods for Matrix Equations Which Include Matrix Functions, Student Krylov Day 2015, TU Delft, Netherlands, February 2, 2015

### 2014

2014

- Low-rank Solutions of Lyapunov Equations Workshop within DAAD project Optimal Damping of Vibrating Systems, J. J. Strossmayer University of Osijek, Croatia, October 7-10, 2014
- Low-rank Approximations of Frequency-limited Gramians, Joint ALAMA & GAMM-ANLA Workshop, Barcelona, Spain, July 14-16, 2014
- [Poster] Minimizing the Norm of Cayley transformation X vector, CSC Tegernsee Workshop, Castle Ringberg, June 25-27, 2014
- Preconditioning for inexact inner-outer methods for the two-sided, non-Hermitian eigenvalue problem, Householder Symposium XIX, Spa, Belgium, June 10, 2014
- Anwendung der Modellordnungsreduktion auf Fragestellungen im Maschinenbau (german), MPI Magdeburg, April 29, 2014
- Inexact preconditioned solves in Newton type methods for nonlinear eigenvalue problems,
*85th Annual Meeting of GAMM*, Erlangen, March 10-14, 2014 - Balanciertes Abschneiden in beschränkten Frequenzintervallen für hochdimensionale Systeme (german),
*9th Elgersburg Workshop*, Elgerburg, March 2-6, 2014 - Semi-active damping optimization of vibrational systems using dimension reduction,
*Complexity Reducing Formulations in Optimization*, Magdeburg, February 24-28, 2014

### 2013

2013

- Inner-outer methods for large-scale two-sided eigenvalue problems.
*Oberwolfach Workshop on Numerical Solution of PDE Eigenvalue Problems*, Mathematisches Forschungsinstitut Oberwolfach, November 17-23, 2013 - Low-rank residuals and new shift parameter strategies in ADI methods for large Lyapunov and Sylvester equations.
*GAMM Workshop Applied and Numerical Linear Algebra*, Wuppertal, September 9-10, 2013 - [Poster] Computing Dominant Eigenvalues of Large-Scale Dynamical Systems.
*Bifurcation Theory, Numerical Linear Algebra and Applications*, Bath, UK, July 1-2, 2013 - Recent numerical improvements in low-rank ADI methods.
*Numerical Analysis and Scientific Computation with Applications (NASCA13)*, Calais, France, June 24-26, 2013 - Stopping criteria for iterative balancing and truncation of linear dynamical systems,
*Model Reduction and Approximation for Complex Systems 2013*, Marseille, France, June 10-14, 2013 - Solving inhomogeneous eigenvalue problems,
*GAMM 84th Annual Scientific Conference*, Novi Sad, Serbia, March 18-22, 2013

### 2012

2012

- On inexact dominant pole based modal truncation
*, GMA / GAMM Workshops*, Anif, Austria, September, 17-21, 2012 - On tuned preconditioners for inexact two-sided eigenvalue iterations,
*3rd IMA Conference on Numerical Linear Algebra and Optimisation*, University of Birmingham, UK, September 10-12, 2012 - On inexact dominant pole based model truncation,
*Bath Numerical Analysis Seminar*, Bath, UK, Septermber 4, 2012 - Tuned preconditioners for inexact two-sided inverse and Rayleigh quotient iteration,
*2012 SIAM Confernce on Applied Linear Algebra*, Valencia, Spain, June 18-22, 2012 - A completely real way of dealing efficiently with complex shifts in the low-rank ADI method,
*GAMM 83nd Annual Scientific Conference*, Darmstadt, March 26-30, 2012 - Improved Second Order Balanced Truncation for Symmetric Systems,
*MATHMOD 2012 - 7th Vienna International Conference on Mathematical Modelling*, Vienna, Austria, February 14-17, 2012

### 2011

2011

- Efficient Handling of Complex Shift Parameters in the Low-rank Cholesky Factor ADI method,
*Workshop on Matrix Equations and Tensor Techniques*, Aachen, November 21 - 22, 2011, and*GAMM Workshop 2011 on Applied and Numerical Linear Algebra*, Bremen, September 22 - 23, 2011 - Dominant pole computation of MIMO second order systems,
*17th ILAS Conference*, Braunschweig, August 22 - 26, 2011 - Modelordnungsreduktion für dynamische Systeme zweiter Ordnung,
*Miniworkshop MPI - Fraunhofer IFF - OvGU*, Magdeburg, May 10, 2011 - Two-sided harmonic subspace extractions for the generalized eigenvalue problem,
*GAMM 82nd Annual Scientific Conference*, Graz, Austria, April 18-21, 2011 - Model order reduction of large-scale dynamical systems with Jacobi-Davidson style eigensolvers,
*2011 International Conference on Communications, Computing and Control Applications (CCCA’11)*, Hammamet, Tunisia, March 3-5, 2011

### 2010

2010

- Towards a hybrid balanced and modal truncation method for large-scale LTI systems,
*Model Reduction for Complex Dynamical Systems*, TU Berlin, Dezember 2-4, 2010 - Modern Numerical Methods for Large-Scale Eigenvalue Problems,
*Welcome colloquium dedicated to Prof. Benner*, Max Planck Institute Magdeburg, November 5, 2010