A note on the Bramson-Kalikow process
We consider discrete-time stationary processes
$X_n\in \{\pm 1\}$, ${n\in \Z}$, specified by a
regular attractive $g$-function, similar to those considered
by Bramson and Kalikow.
We give an explicit set of conditions
that imply the existence of at least two distinct processes specified
by the same $g$-function, and consider a few examples that emphasize the
role played by the smoothness of the majority rule at the origin.
Keywords: g-function, stationary process, memory, long-range dependence,
concentration inequality.
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