| U. Grenander and G. Szego, Toeplitz Forms and Their Applications, 2nd Ed., Chelsea Publishing Co., New York, 1981. |
....equivalent [17, 18] i.e. they are uniformly bounded (by 1 #) in strong norm, and lim N## R N RK,N HS = 0, where A HS = T r(A T A) 1 2 denotes the Hilbert Schmidt (weak) norm of a matrix. The relative entropy between the Gaussian distributions P N and P N K is given by [16, 17] D(P N P N K ) 1 2 ln det RK,N R 1 N 1 2 1 2 T r(RK,N R 1 N ) 1 2 ln det RK,N 1 2 ln det RN 1 2 1 2 T r(RK,N R 1 N ) where 1 N ln det RK,N = 1 K ln det RK O(1 N) 1 N ln det RN # ## ln #(f) df, T r(RK,N R 1 N ) # T r(RK,N TN ) as N ##. Now # l # ....
....Parseval s identity, we obtain 1 N T r(RK,N R 1 N ) # # n#Z (wK,n r n )t n = ## # K (f) #(f) df and so lim N## 1 N D(P N P N K ) 1 2 # ## ln #(f) df 1 K ln det RK # 1 2 1 2 ## # K (f) #(f) df. E. 1) Now lim K## 1 K ln det RK = ## ln #(f) df [16]. Also lim K## ## # K (f) #(f) df = 1, because # K converges uniformly to # over# (by continuity of #) and #(f) is bounded away from zero. Hence (6.1) follows. # F Proof of Theorem 6.2 Given two K dimensional vectors r = r k K k=1 and s = s k K k=1 , let C (K) r, s) max ....
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U. Grenander and G. Szego, Toeplitz Forms and Their Applications, 2nd Ed., Chelsea Publishing Co., New York, 1981.
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U. Grenander and G. Szego, Toeplitz Forms and Their Applications, 2nd Ed., Chelsea Publishing Co., New York, 1981.
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Ulf Grenander and Gabor Szeg}o. Toeplitz forms and their applications. Chelsea Publishing Co., New York, second edition, 1984.
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