Page 183 - Introduction to Statistical Pattern Recognition
P. 183

4  Parametric Classifiers                                     165


                    where






                                       R, =                                    (4.134)









                                       R,. =                                   (4.135)






                         Many properties of the block toeplitz matrix are known, and listed as fol-
                    lows without proof  [6].

                              (1)   A  @B#A @B,                                (4.136)


                              (2)   (A @B)(C @D) = AC  @BD ,                   (4.137)

                              (3)   (A  @B)'  =AT @BT,                         (4.138)

                              (4)   (A @B)-'  =A-'  C3B-I  ,                   (4.139)

                              (5)   tr(A  @B) = (tr A)(tr B) ,                 (4.140)


                              (6)   (A  @B)(@ BY) = (a @")(A  @ p)             (4.141)
                                    where A0 =@A and BY = Yp
                                         e, Y:  eigenvector matrices of A and B
                                         A, p: eigenvalue matrices of  A  and B,


                              (7)   IA  @Bl = IAIml~I"= IAImlBI"               (4.142)
                                    where A and B are nxn and mxm matrices.
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