Özgüler, Arif BülentSaadaoui, Karim2016-02-082016-02-082001http://hdl.handle.net/11693/27918Date of Conference: 4-7 September 2001Conference Name: European Control Conference, IEEE 2001A proof of a strengthened version of the phase growth condition for Hurwitz stable polynomials is given. Based on this result, a necessary and sufficient condition for a polynomial p(s) to be a local convex direction for a Hurwitz stable polynomial q(s) is obtained. The condition is in terms of polynomials associated with the even and odd parts of p(s) and q(s).EnglishConvex directionsHermite-Biehler theoremLocal convex directionsRobust controlStabilizationRobust controlStabilizationPhase growthConference Paper10.23919/ECC.2001.7075993