NumPI seminars 2024-2025
Fall 2024
- 9/9/2024, 15:30 Maria Strazzullo, Politecnicno di Torino
Nonlinear Feedback Control via Dynamical Low-Rank Approximation
Questo seminario si terrà presso l’Aula Riunioni del Dipartimento di Matematica - 27/09, 14:00 Alfio Borzì, Universität Würzburg
The Sequential Quadratic Hamiltonian Method
Questo seminario si terrà presso l’Aula Seminari del Dipartimento di Matematica - 4/10/2024, 11:00 Mehdi Najafi Kalyani (University of Pisa)
A two-dimensional minimum residual technique for accelerating two-step iterative solvers
Questo seminario si terrà presso l’Aula Seminari del Dipartimento di Matematica.
Past years
NumPI seminars 2023-204
Spring 2024
- 6/02/2024, 10:00 Dario Fasino, Università di Udine
Is there a Kemeny’s constant for second-order random walks?
Questo seminario si terrà presso l’Aula Magna del Dipartimento di Matematica - 13/02/2024, 15:00 Stefano Pozza, Charles University – Univerzita Karlova
How to express the solution of an ODE as a linear system (in a suitable algebra) and exploit it for fast computation.
Questo seminario si terrà presso l’Aula Mancini della Scuola Normale Superiore - 11/04/2024, 16:00 Ivan Bioli, École Polytechnique Fédérale de Lausanne
Preconditioned Low-Rank Riemannian Optimization for Multiterm Linear Matrix Equations
Questo seminario si terrà presso l’Aula Seminari del Dipartimento di Matematica - 24/05/2024, 16:00 Dierk Schleicher, Aix-Marseille Université
The Weierstrass and Ehrlich-Aberth root finders as dynamical systems
Questo seminario si terrà presso l’Aula Seminari del Dipartimento di Matematica - 13/06/2024, 11.00 Taejun Park, University of Oxford
A low-rank approximation of parameter-dependent matrices via CUR decomposition
Questo seminario si terrà presso l’Aula Riunioni del Dipartimento di Matematica - 15/07/2024, 15.00 Jie Meng, Ocean University of China
Theoretical and computational properties of quasi-Toeplitz M-matrices
Questo seminario si terrà presso l’Aula Riunioni del Dipartimento di Matematica.
NumPI seminars 2022-2023
Spring 2023
The seminars will be held either in the Aula Magna or in the Aula Seminari at the Department of Mathematics.
- 21/02/2023, 11:00 Prof. Lloyd N. Trefethen, University of Oxford, UK
Applications of AAA Rational Approximation
Questo seminario si terrà presso l’Aula Volterra della Normale - 28/03/2023, 16:00 Cecilia Pagliantini, Università di Pisa,
Model order reduction of parametric Hamiltonian systems on matrix manifolds
Aula Seminari - 13/04/2023, 11:00 Raf Vandebril, KU Leuven
Perfect Shifted QR for Rank Structured Pencils
Aula Riunioni - 19/05/2023, 15:00 Federica Pes, Università di Pisa,
Grassmann extrapolation of density matrices as a tool to accelerate Born-Oppenheimer molecular dynamics
Aula Riunioni - 30/05/2023, 16:00 Michele Rinelli, Scuola Normale Superiore
Stochastic probing methods for estimating the trace of functions of sparse symmetric matrices
Aula Riunioni - 05/06/2023, 16:00 Luca Saluzzi, Scuola Normale Superiore
A Tensor Gradient Cross for Hamilton-Jacobi-Bellman equations
Aula Seminari - 18/07/2023, 14:00 Lu Xia, Eindhoven University of Technology (TU/e)
On the influence of stochastic rounding bias in implementing gradient descent with applications in low-precision training
Aula Magna
Fall 2022
The seminars will be held either in the Aula Magna or in the Aula Seminari at the Department of Mathematics. We will keep streaming the seminars live using the BigBlueButton system of the Department of Mathematics. Please visit https://metings.dm.unipi.it/b/leo-xik-xu4 to join a seminar remotely.
- 15/12/2022, 11:00 Gianluca Ceruti, EPFL, Switzerland,
Robust numerical integrators for dynamical low-rank approximation - 10/11/2022, 11:00 Aaron Melman, Santa Clara University, USA,
Recent extensions of scalar and matrix polynomial properties and their interactions - 24/10/2022, 16:00 Santolo Leveque, Scuola Normale Superiore,
A “matching strategy” for optimal control problems with PDEs as constraints - 26/09/2022, 16:15 Anna Weller, University of Cologne
A spectral Galerkin method for the solution of reaction-diffusion equations on metric graphs
Questo seminario si terrà presso l’Aula Volterra della Normale
NumPI seminars 2021-2022
Spring 2022
The seminars will be held either in the Aula Magna or in the Aula Seminari at the Department of Mathematics. We will keep streaming the seminars live using the BigBlueButton system of the Department of Mathematics. Please visit https://metings.dm.unipi.it/b/leo-xik-xu4 to join a seminar remotely.
- 13/04/2022, 11:00 Raf Vandebril, Department of Computer Science, KU Leuven,
Construction of a sequence of orthogonal rational functions - 18/03/2022, 11:00 Filippo Lipparini, Dipartimento di Chimica, UniPI,
Grassmann extrapolation for Born-Oppenheimer Molecular Dynamics - 07/03/2022, 11:15 Nicola Guglielmi, Gran Sasso Science Institute,
Eigenvalue optimization via low-rank ODEs.
This seminar will be held in the Aula Volterra on the third floor of the Palazzo della Carovana, Scuola Normale Superiore.
Il seminario si terrà in presenza. Chi fosse interessato a partecipare deve scrivere a mailto:classi@sns.it
entro le 9:00 di Lunedì 7 marzo 2022. - 24/02/2022, 11.00 Leonardo Robol, Università di Pisa,
Sampling the eigenvalues of random matrices. - 10/02/2022, 11.00 Milo Viviani, Scuola Normale Superiore,
Solving cubic matrix equations arising in conservative dynamics.
Fall 2021
The seminars will be held either in the Aula Magna or in the Aula Seminari at the Department of Mathematics. We will keep streaming the seminars live using the BigBlueButton system of the Department of Mathematics. Please visit https://hausdorff.dm.unipi.it/b/leo-xik-xu4 to join a seminar remotely.
- 06/12/2021, 15:00 Bruno Iannazzo, Università degli Studi di Perugia,
New geometries on positive-definite matrices and their relation to the power means - 19/11/2021, 10:00 Mariarosa Mazza, Università dell’Insubria,
Caputo and Riemann-Liouville fractional derivatives: a matrix comparison. - 25/10/2021, 15:00 Cecilia Pagliantini, TU Eindhoven,
Structure-preserving dynamical model order reduction of parametric Hamiltonian systems, video. - 15/10/2021, 16:30 Igor Simunec, Scuola Normale Superiore,
Computation of generalized matrix functions with rational Krylov methods, video.
If you wish to attend in person, please fill in this form:
NumPI seminars 2020-2021
Spring 2021
Due to the COVID-19 pandemic, the seminars will be run online using the BigBlueButton system of the Department of Mathematics. Please visit https://hausdorff.dm.unipi.it/b/leo-xik-xu4 to join a seminar.
- 18/06/2021, 16:00 Stefano Cipolla, University of Edinburgh
Random multi-block ADMM: an ALM based view for the QP case – video. - 04/06/2021, 15:00 Margherita Porcelli, Università di Bologna
Relaxed Interior point methods for low-rank semidefinite programming problems – video. - 14/05/2021, 16:00 Alfredo Buttari, CNRS, IRIT, Toulouse
Reducing the complexity of linear systems solvers through the block low-rank format – video. - 07/05/2021, 16:00 Stefano Pozza, Charles University,
The Short-term Rational Lanczos Method and Applications – video. - 23/04/2021, 16:00 Philipp Birken, Lunds Universitet,
Conservative iterative solvers in computational fluid dynamics – video - 09/04/2021, 16:00: Jie Meng, University of Pisa,
Geometric means of quasi-Toeplitz matrices – video. - 19/03/2021, 16:00: Alice Cortinovis, EPFL,
Randomized trace estimates for indefinite matrices with an application to determinants – video. - 05/03/2021, 16:00: Davide Bianchi, University of Insubria,
Compatibility, embedding and regularization of non-local random walks on graphs – video
Fall 2020
Due to the COVID-19 pandemic, the seminars will be run online using the BigBlueButton system of the Department of Mathematics. Please visit https://hausdorff.dm.unipi.it/b/leo-xik-xu4 to join a seminar.
- 30/11/2020, 16:00: Fabio Durastante, IAC-CNR,
(Sparse) Linear Algebra at the Extreme Scales – Video - 17/11/2020, 11:00: Francesco Tudisco, GSSI,
A tensor method for semi-supervised learning – Video - 03/11/2020, 11:00: Angelo Casulli, Scuola Normale Superiore,
Rank-structured QR for Chebyshev rootfinding – Video - 20/10/2020, 11.00: Simon Telen, MPI Leipzig,
Solving Polynomial Systems via Truncated Normal Forms. - 06/10/2020, 11.00: Milo Viviani, Scuola Normale Superiore,
Symplectic methods for isospectral flows and 2D ideal hydrodynamics.
NumPI seminars 2019-2020
Spring 2020
- 04/03/2020: Daniel Szyld, Temple University
Efficient iterative methods for the solution of Generalized Lyapunov Equations: Block vs. point Krylov projections, and other controversial decisions. - 29/01/2020: Simona Perotto, Politecnico di Milano,
Topology Optimization: a new algorithm based on anisotropic mesh adaptation. - 20/01/2020: Fernando De Terán, Universidad Carlos III de Madrid, Spain
Flanders’ theorem for many matrices under commutativity assumptions.
Fall 2019
- 11/12/2019: Vanni Noferini, Aalto University, Finland,
Wilkinson’s bus: weak condition numbers, with applications. - 04/12/2019: Stefano Massei, EPFL, Lausanne, Switzerland,
Rational Krylov for Stieltjes matrix functions: convergence and pole selection. - 27/11/2019: Gerald Williams, University of Essex, UK,
The role of circulant matrices in the study of cyclically presented groups - 20/11/2019: Enrico Facca, Scuola Normale Superiore, Pisa,
A bio-inspired optimization tool, the Dynamic Monge-Kantorovich model. Numerical solutions and applications - 13/11/2019: Massimiliano Fasi, Department of Mathematics, The University of Manchester
Handling the conditioning of extreme-scale matrices
NumPI seminars 2018-2019
Here you find a list of the seminars scheduled for the academic year 2018-2019.
Spring 2019
- 04/07/2019: Federico Poloni, Università di Pisa
Principal Pivot Transforms, quasidefinite matrices, and matrix equations - 25/06/2019: Michael L. Overton, Courant Institute of Mathematical Sciences, New York University
Crouzeix Conjecture - 05/06/2019: Leonardo Robol, Università di Pisa,
Rank structures in matrix equations and matrix functions - 12/04/2019: James Nagy, Department of Mathematics, Emory University
MATLAB Tools for Large-Scale Linear Inverse Problems - 11/04/2019: Fabio Carrara, ISTI-CNR,
Neural networks for image understanding: methods, limitations, and new frontiers - 04/04/2019: Peter Benner, Max Planck Institute for Dynamics of Complex Technical Systems
Low-rank tensor methods for PDE-constrained optimization under uncertainty. - 08/04/2019: Raf Vandebril, Department of Computer Science, KU Leuven
Structures, Gramians, and Krylov - 25/03/2019: Vanni Noferini, University of Essex and Aalto University
Matrices in companion rings and their Smith forms, with applications to group theory and algebraic topology - 21/03/2019: Vladimir Druskin, Worcester Polytechnic Institute
Embedding properties of network realizations of reduced order models with applications to inverse scattering and data science - 18/03/2019: Carla Hernando, UC3M, Spain
Sparse linearizations and (sparse) structured ell-ifications - 14/03/2019: Michiel Hochstenbach, TU Eindhoven, Netherlands
Solving polynomial systems by determinantal representations - 28/02/2019: Fabio Durastante, University of Pisa
The Krylov–Jacobi method: functions of matrices for fractional partial differential equations - 09/01/2019: Daniel Kressner, EPFL, Switzerland
Tensorized Krylov subspace methods: Algorithms, analysis, and applications
Fall 2018
- 13/12/2018: Giulio Masetti, University of Pisa
Computing dependability-oriented measures on Markov chains by means of matrix functions - 06/12/2018: Stefano Massei, EPFL, Switzerland
A low-rank technique for computing the quasi stationary distribution of Galton-Watson processes - 27/11/2018: Marcus Carlsson, Lund University, Sweden
Perturbation theory for the spectral decomposition of matrices - 22/11/2018: Jie Meng, Pusan National University, South Korea
On the positive definite solution of the nonlinear matrix equation X^p=A+M^T(X#B)M - 15/11/2018: Giovanni Barbarino, Scuola Normale Superiore, Pisa
Higher order spectral symbols and eigenvalues approximation for Toeplitz matrices