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arXiv · 2610.41326

Exponential stability of port-Hamiltonian systems with unstructured, measurable Hamiltonian densities

Heinrich Kuettler·Marcus Waurick
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Abstract

For first-order port-Hamiltonian systems in the dissipative setting considered here, we characterise exponential stability without any further regularity or block-structure assumption on the Hamiltonian density, thus closing a gap persisting in the literature. The proof requires revisiting the computation of the adjoint generator of the port-Hamiltonian semigroup. Finally, we provide both examples and non-examples showcasing the inconclusiveness of known conditions on the Hamiltonian densities necessary for the application of characterisation results in the literature.

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Heinrich Kuettler, Marcus Waurick. 2026-10-30. Exponential stability of port-Hamiltonian systems with unstructured, measurable Hamiltonian densities. https://arxiv.org/abs/2610.41326

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