5 papers
Abstract second-order boundary control systems
Till Preuster, Timo Reis, Manuel Schaller
We consider abstract second order systems of the form , which are typically analyzed via the operator matrix $\mathcal{A}=\left[\begin{smallma…
Funnel control for passive infinite-dimensional systems
Thavamani Govindaraj, Anthony Hastir, Lassi Paunonen +1
We consider funnel control for linear infinite-dimensional systems that are impedance passive, meaning that they satisfy an energy balance in which the stored energy equals the squ…
Weak solutions of port-Hamiltonian systems
Timo Reis
We consider port-Hamiltonian systems from a geometric perspective, where the quantities involved such as state, flows, and efforts evolve in (possibly infinite-dimensional) Banach…
The infinite-dimensional dissipation inequality
Timo Reis
We study the dissipativity of linear infinite-dimensional systems with respect to a prescribed quadratic supply rate functional. We characterize this property via an operator inequ…
Regularization and passivity-preserving model reduction of quasilinear magneto-quasistatic coupled problems
Johanna Kerler-Back, Timo Reis, Tatjana Stykel
We consider the quasilinear magneto-quasistatic field equations that arise in the simulation of low-frequency electromagnetic devices coupled to electrical circuits. Spatial discre…