3 papers
math.OC2026
Unimodal self-oscillations and their sign-symmetry for discrete-time relay feedback systems with dead zone
Kang Tong, Christian Grussler, Michelle S. Chong
This paper characterizes self-oscillations in discrete-time linear time-invariant (LTI) relay feedback systems with nonnegative dead zone. Specifically, we aim to establish existen…
math.OC2026
On System Operators with Variation Bounding Properties
Christian Grussler, Chaim Roth, Kang Tong
The property of linear discrete-time time-invariant system operators mapping inputs with at most sign changes to outputs with at most sign changes is investigated. We s…
math.OC2025
Self-sustained oscillations in discrete-time relay feedback systems
Kang Tong, Christian Grussler, Michelle S. Chong
We study the problem of determining self-sustained oscillations in discrete-time linear time-invariant relay feedback systems. Concretely, we are interested in predicting when such…