English

Generalized stationary random fields with linear regressions - an operator approach

Probability 2011-09-15 v2

Abstract

Existence, L2L^2-stationarity and linearity of conditional expectations \wwoXk...,Xk2,Xk1\wwo{X_k}{...,X_{k-2},X_{k-1}} of square integrable random sequences X=(Xk)kZ\mathbf{X}=(X_{k})_{k\in\mathbb{Z}} satisfying \wwoXk...,Xk2,Xk1,Xk+1,Xk+2,...=j=1bj(Xkj+Xk+j) \wwo{X_k}{...,X_{k-2},X_{k-1},X_{k+1},X_{k+2},...}=\sum_{j=1}^\infty b_j(X_{k-j}+X_{k+j}) for a real sequence (bn)n\nat(b_n)_{n\in\nat}, is examined. The analysis is reliant upon the use of Laurent and Toeplitz operator techniques.

Keywords

Cite

@article{arxiv.math/0507332,
  title  = {Generalized stationary random fields with linear regressions - an operator approach},
  author = {Wojciech Matysiak and Paweł J. Szabłowski},
  journal= {arXiv preprint arXiv:math/0507332},
  year   = {2011}
}

Comments

The current, final version of the paper has a slightly different title (the previous title was "Non-Markov random fields with linear regressions -- a Toeplitz operators approach")