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 25 September 2023 (09:00) to Wednesday 27 September 2023 (12:30)

Monday 25 September 2023

09:00

09:00 - 09:30
Room: Main/groundfloor-V0.05/2+3 - Prigogine

09:30

09:30 - 09:45
Room: Main/groundfloor-V0.05/2+3 - Prigogine
09:45 Krylov subspaces
Krylov subspaces
09:45 - 10:30
Room: Main/groundfloor-V0.05/2+3 - Prigogine
Contributions

09:45 Limited memory polynomial Krylov subspace methods for matrix functions - Andreas Frommer (University of Wuppertal)
10:30 Krylov subspaces
Krylov subspaces
10:30 - 12:00
Room: Main/groundfloor-V0.05/2+3 - Prigogine
Contributions

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

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

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

12:00 Lunch
Lunch
12:00 - 13:30
Room: Main/groundfloor-V0.05/2+3 - Prigogine
13:45 Network science
Network science
13:45 - 14:30
Room: Main/groundfloor-V0.05/2+3 - Prigogine
Contributions

13:45 f(A)bulous networks: an overview of matrix functions in network science - Francesca Arrigo (University of Strathclyde)
14:30 Introduction
Introduction
14:30 - 15:00
Room: Main/groundfloor-V0.05/2+3 - Prigogine
Contributions

14:30 Introduction to focus group topics - Kathryn Lund (Max Planck Institute for Dynamics of Complex Technical Systems)
15:00 Break
Break
15:00 - 15:30
Room: Main/groundfloor-V0.05/2+3 - Prigogine

15:30 Split up and discuss
Split up and discuss
15:30 - 17:00
Room: Main/groundfloor-V0.05/2+3 - Prigogine
Tuesday 26 September 2023
09:00 Exponential integration
Exponential integration
09:00 - 10:30
Room: Main/groundfloor-V0.05/2+3 - Prigogine
Contributions

09:00 The joys and challenges of exponential integration - Mayya Tokman (University of California, Merced)

09:45 The $\varphi(A)$bulous matri$\otimes$ functions in exponential integrators for problems with Kronecker structure - Marco Caliari (University of Verona)
10:30 Break
Break
10:30 - 11:00
Room: Main/groundfloor-V0.05/2+3 - Prigogine
11:00 Exponential integration
Exponential integration
11:00 - 12:00
Room: Main/groundfloor-V0.05/2+3 - Prigogine
Contributions

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

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

11:40 Projected exponential methods for stiff dynamical low-rank approximation problems - Benjamin Carrel (University of Geneva)
12:00 Lunch
Lunch
12:00 - 13:30
Room: Main/groundfloor-V0.05/2+3 - Prigogine
13:30 f(A)scinating applications
f(A)scinating applications
13:30 - 15:00
Room: Main/groundfloor-V0.05/2+3 - Prigogine
Contributions

13:30 Understanding tensor and tensor decompositions with application to the chemical master equation - Roger Sidje (University of Alabama)

14:15 $f(A)b$ulous ladder networks: From "rigorous" computation of $b^*\exp(tA)b$ to learning $f(A)b$ with unknown $A$ - Vladimir Druskin (Worcester Polytechnic Institute)
15:00 Break
Break
15:00 - 15:30
Room: Main/groundfloor-V0.05/2+3 - Prigogine

15:30 Present results from day before
Present results from day before
15:30 - 17:00
Room: Main/groundfloor-V0.05/2+3 - Prigogine

18:30 Conference dinner
Conference dinner
18:30 - 21:30
Wednesday 27 September 2023
09:00 Graphs and networks
Graphs and networks
09:00 - 10:30
Room: Main/groundfloor-V0.05/2+3 - Prigogine
Contributions

09:00 Computational graphs for matrix functions - Massimiliano Fasi (Durham University)

09:45 Estimating the von Neumann entropy of large matrices - Michele Benzi (Scuola Normale Superiore di Pisa)
10:30 Break
Break
10:30 - 11:00
Room: Main/groundfloor-V0.05/2+3 - Prigogine
11:00 Randomization and trace(f(A))
Randomization and trace(f(A))
11:00 - 12:00
Room: Main/groundfloor-V0.05/2+3 - Prigogine
Contributions

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

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

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

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

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