Original language | English |
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Title of host publication | Encyclopedia of Systems and Control Engineering |
Number of pages | 16 |
DOIs | |
Publication status | Published - 2025 |
Abstract
Absolute stability concerns the feedback interconnection of two causal systems: one being linear time-invariant, and the other belonging to a specific class. Its study has been the source for many important results in systems theory from the Popov criterion and so-called KYP Lemma in the 1960s through to applications of Integral Quadratic Constraint theory in the present day.