FREeuElpCY DO- CHARACTEREATIOB OF DDXDVRALIZED FIXED MODES
Xu Xie, Yong Yang · 1986
R(. ) denotes the set of zeros of det( .I. .. . fiwuenoy charecteri5ation for the eristence eation of the corresponding defMtions given in [ 1 ] He note that the definition given'here is a generaof fixed modes of a linear system described in differen- and c21. tial operator form are presented. It is shown that some well-known results are special oases given in this note. ing are introduced. In order to obtain the desired results, the follow