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Series of Semester Seminars in Numerical Linear Algebra and beyond Department of Mathematics, University of Bologna
This webpage lists some of the seminars organized at the Department of Mathematics, University of Bologna. The presentations mainly cover Numerical Linear Algebra problems and related topics but broader contributions are welcomed as well.
This webpage lists some of the seminars organized at the Department of Mathematics, University of Bologna. The presentations mainly cover Numerical Linear Algebra problems and related topics but broader contributions are welcomed as well.
Forthcoming events:
14/05/2025, Karl Meerbergen, Professor @ KU Leuven
Time&Location: 11:30 - Aula Bombelli, Dipartimento di Matematica, Università di Bologna
Title: Rational Approximation and Linearization of Matrix Valued Functions: Algorithms and Application
Abstract: A nonlinear matrix is a matrix whose entries are nonlinear functions of a parameter. Such problems arise from physics (Schroedinger equation) and mechanical engineering (porous materials, boundary element method, e.g.). The last 20 years, rational approximation methods and linearization were proposed to approximate such matrices by linear pencils of much higher dimensions. Applications are the nonlinear eigenvalue problem, parametric linear systems, frequency sweeping, model order reduction and the solution of time dependent problems with nonlinear frequency dependencies. We give an overview of approximation methods with focus on AAA and Krylov methods that exploit the structure of the linear pencil.
June 2025, Ricardo Nochetto, Professor @ University of Maryland, College Park
Time&Location: TBA, Dipartimento di Matematica, Università di Bologna
Title: TBA
Abstract: TBA
Organizers: Davide Palitta, Valeria Simoncini
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