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math.NA2018★ 9 cited
Quasi-Herglotz functions and convex optimization
Yevhen Ivanenko, Mitja Nedic, Mats Gustafsson +3
We introduce the set of quasi-Herglotz functions and demonstrate that it has properties useful in the modeling of non-passive systems. The linear space of quasi-Herglotz functions…
math.NA2017
Passive approximation and optimization using B-splines
Yevhen Ivanenko, Mats Gustafsson, B. L. G. Jonsson +4
A passive approximation problem is formulated where the target function is an arbitrary complex valued continuous function defined on an approximation domain consisting of a finite…