Title :
Some stability theorems for polygons of polynomials
Author :
Pujara, L.R. ; Shanbhag, Naresh
Author_Institution :
Dept. of Electr. Eng., Wright State Univ., Dayton, OH, USA
fDate :
11/1/1992 12:00:00 AM
Abstract :
Some necessary and sufficient conditions for a polynomial in a polygon of polynomials to vanish on the imaginary axis are obtained. These theorems generalize the segment lemma of H. Chapellat and S.P. Bhattachartta (see ibid., vol.34, p.448-50, 1989) to a polygon of polynomials
Keywords :
polynomials; stability; imaginary axis; necessary and sufficient conditions; polygons of polynomials; stability theorems; Ear; Polynomials; Region 9; Robust stability; Sufficient conditions; Testing; Uncertainty;
Journal_Title :
Automatic Control, IEEE Transactions on
