Name: The f(A)bulous workshop on matrix functions and exponential integrators
Start: 2023-09-25T09:00:00+02:00
End: 2023-09-27T12:30:00+02:00
Location: Max Planck Institute for Dynamics of Complex Technical Systems

The f(A)bulous workshop on matrix functions and exponential integrators

from Monday, September 25, 2023 (9:00 AM) to Wednesday, September 27, 2023 (12:30 PM)

Monday, September 25, 2023

9:00 AM

9:00 AM - 9:30 AM
Room: Main/groundfloor-V0.05/2+3 - Prigogine

9:30 AM

9:30 AM - 9:45 AM
Room: Main/groundfloor-V0.05/2+3 - Prigogine
9:45 AM Krylov subspaces
Krylov subspaces
9:45 AM - 10:30 AM
Room: Main/groundfloor-V0.05/2+3 - Prigogine
Contributions

9:45 AM Limited memory polynomial Krylov subspace methods for matrix functions - Andreas Frommer (University of Wuppertal)
10:30 AM Krylov subspaces
Krylov subspaces
10:30 AM - 12:00 PM
Room: Main/groundfloor-V0.05/2+3 - Prigogine
Contributions

10:30 AM Krylov Subspace Recycling For Matrix Functions - Liam Burke (Trinity College Dublin)

11:20 AM Adaptive rational Krylov methods for exponential Runge--Kutta integrators - Kai Bergermann (TU Chemnitz) Martin Stoll (TU Chemnitz)

11:40 AM Error bounds for the approximation of matrix functions with rational Krylov methods - Igor Simunec (Scuola Normale Superiore di Pisa)
10:50 AM Break
Break
10:50 AM - 11:20 AM
Room: Main/groundfloor-V0.05/2+3 - Prigogine

12:00 PM Lunch
Lunch
12:00 PM - 1:30 PM
Room: Main/groundfloor-V0.05/2+3 - Prigogine
1:45 PM Network science
Network science
1:45 PM - 2:30 PM
Room: Main/groundfloor-V0.05/2+3 - Prigogine
Contributions

1:45 PM f(A)bulous networks: an overview of matrix functions in network science - Francesca Arrigo (University of Strathclyde)
2:30 PM Introduction
Introduction
2:30 PM - 3:00 PM
Room: Main/groundfloor-V0.05/2+3 - Prigogine
Contributions

2:30 PM Introduction to focus group topics - Kathryn Lund (Max Planck Institute for Dynamics of Complex Technical Systems)
3:00 PM Break
Break
3:00 PM - 3:30 PM
Room: Main/groundfloor-V0.05/2+3 - Prigogine

3:30 PM Split up and discuss
Split up and discuss
3:30 PM - 5:00 PM
Room: Main/groundfloor-V0.05/2+3 - Prigogine
Tuesday, September 26, 2023
9:00 AM Exponential integration
Exponential integration
9:00 AM - 10:30 AM
Room: Main/groundfloor-V0.05/2+3 - Prigogine
Contributions

9:00 AM The joys and challenges of exponential integration - Mayya Tokman (University of California, Merced)

9:45 AM The $\varphi(A)$bulous matri$\otimes$ functions in exponential integrators for problems with Kronecker structure - Marco Caliari (University of Verona)
10:30 AM Break
Break
10:30 AM - 11:00 AM
Room: Main/groundfloor-V0.05/2+3 - Prigogine
11:00 AM Exponential integration
Exponential integration
11:00 AM - 12:00 PM
Room: Main/groundfloor-V0.05/2+3 - Prigogine
Contributions

11:00 AM Domain-based explicit-exponential methods for flow problems - Philipp Birken (Lund University)

11:20 AM Efficient numerical solution of spatially variable coefficients ADR equations using exponential integrators - Fabio Cassini (University of Verona)

11:40 AM Projected exponential methods for stiff dynamical low-rank approximation problems - Benjamin Carrel (University of Geneva)
12:00 PM Lunch
Lunch
12:00 PM - 1:30 PM
Room: Main/groundfloor-V0.05/2+3 - Prigogine
1:30 PM f(A)scinating applications
f(A)scinating applications
1:30 PM - 3:00 PM
Room: Main/groundfloor-V0.05/2+3 - Prigogine
Contributions

1:30 PM Understanding tensor and tensor decompositions with application to the chemical master equation - Roger Sidje (University of Alabama)

2:15 PM $f(A)b$ulous ladder networks: From "rigorous" computation of $b^*\exp(tA)b$ to learning $f(A)b$ with unknown $A$ - Vladimir Druskin (Worcester Polytechnic Institute)
3:00 PM Break
Break
3:00 PM - 3:30 PM
Room: Main/groundfloor-V0.05/2+3 - Prigogine

3:30 PM Present results from day before
Present results from day before
3:30 PM - 5:00 PM
Room: Main/groundfloor-V0.05/2+3 - Prigogine

6:30 PM Conference dinner
Conference dinner
6:30 PM - 9:30 PM
Wednesday, September 27, 2023
9:00 AM Graphs and networks
Graphs and networks
9:00 AM - 10:30 AM
Room: Main/groundfloor-V0.05/2+3 - Prigogine
Contributions

9:00 AM Computational graphs for matrix functions - Massimiliano Fasi (Durham University)

9:45 AM Estimating the von Neumann entropy of large matrices - Michele Benzi (Scuola Normale Superiore di Pisa)
10:30 AM Break
Break
10:30 AM - 11:00 AM
Room: Main/groundfloor-V0.05/2+3 - Prigogine
11:00 AM Randomization and trace(f(A))
Randomization and trace(f(A))
11:00 AM - 12:00 PM
Room: Main/groundfloor-V0.05/2+3 - Prigogine
Contributions

11:00 AM Analysis of stochastic probing methods for estimating the trace of functions of sparse symmetric matrices - Michele Rinelli (Scuola Normale Superiore di Pisa)

11:20 AM Randomized low-rank approximation of monotone matrix functions - David Persson (École polytechnique fédérale de Lausanne)

11:40 AM Sensitivity of matrix function based network communicability measures - Marcel Schweitzer (Bergische Universität Wuppertal)
12:00 PM

12:00 PM - 12:15 PM
Room: Main/groundfloor-V0.05/2+3 - Prigogine

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