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math.OC2026
Well-Posedness and Strong Convergence of Infinite-Dimensional Port-Hamiltonian Primal-Dual Gradient Dynamics
O. V. Iftime, A. J. van der Schaft
We establish a functional-analytic framework that justifies the LaSalle convergence argument outlined in [van der Schaft, 2026] on port-Hamiltonian primal-dual gradient dynamics fo…
math.OC2020
Model reduction with pole-zero placement and high order moment matching
Tudor C. Ionescu, Orest V. Iftime, Ion Necoara
In this paper, we compute a low order approximation of a system of large order that matches moments of order of the transfer function, at interpolation points, ha…