Riordan arrays and the LDU decomposition of symmetric Toeplitz plus   Hankel matrices
  We examine a result of Basor and Ehrhardt concerning Hankel and Toeplitz plus Hankel matrices, within the context of the Riordan group of lower-triangular matrices. This allows us to determine the LDU decomposition of certain symmetric Toeplitz plus Hankel matrices. We also determine the generating functions and Hankel transforms of associated sequences. 
Paul Barry, Aoife Hennessy
math.CO