Si segnala il seguente seminario a tutti gli interessati.
Lunedì 3 Novembre 2025, ore 14:30.
Aula Seminari VI Piano, Dipartimento di Matematica, Politecnico di Milano.
Speaker: Kais Ammari, University of Monastir.
Title: Degenerate Damping in Interacting Elastic Systems.
Abstract: We study the regularity and stability of coupled elastic systems subject to distinct damping mechanisms: one acting through the average velocity and another via a fractional power of the elastic operator. The damping matrix is degenerate, meaning that dissipation does not affect all components equally. Using a frequency-domain approach based on resolvent estimates, we describe how this degeneracy influences the semigroup regularity and the decay of solutions. The obtained results are shown to be optimal and relevant for applications in structural mechanics and vibration control.
Link Zoom: https://polimi-it.zoom.us/j/94510717258
Link Seminario Polimi: https://www.mate.polimi.it/Eventi/?id=2645&sezione_di_ricerca=probstat&a...
----- Prof. Luca Scarpa, PhD Associate Professor in Probability Department of Mathematics Politecnico di Milano Via E. Bonardi 9 20133 Milano, Italy e.mail: luca.scarpa@polimi.itmailto:luca.scarpa@polimi.it url: https://sites.google.com/view/lucascarpa
Avviso cambiamento data:
il seminario in oggetto è spostato a
Giovedì 6 Novembre 2025, ore 11:00.
Aula Seminari III Piano, Dipartimento di Matematica, Politecnico di Milano.
On 28 Oct 2025, at 15:34, Luca Scarpa luca.scarpa@polimi.it wrote:
Si segnala il seguente seminario a tutti gli interessati.
Lunedì 3 Novembre 2025, ore 14:30.
Aula Seminari VI Piano, Dipartimento di Matematica, Politecnico di Milano.
Speaker: Kais Ammari, University of Monastir.
Title: Degenerate Damping in Interacting Elastic Systems.
Abstract: We study the regularity and stability of coupled elastic systems subject to distinct damping mechanisms: one acting through the average velocity and another via a fractional power of the elastic operator. The damping matrix is degenerate, meaning that dissipation does not affect all components equally. Using a frequency-domain approach based on resolvent estimates, we describe how this degeneracy influences the semigroup regularity and the decay of solutions. The obtained results are shown to be optimal and relevant for applications in structural mechanics and vibration control.
Link Zoom: https://polimi-it.zoom.us/j/94510717258
Link Seminario Polimi: https://www.mate.polimi.it/Eventi/?id=2645&sezione_di_ricerca=probstat&a...
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Luca Scarpa