# Minimum-dimension trace maps for substitution sequences. Academic Article

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### abstract

• We construct trace maps for products of 2\ifmmode\times\else\texttimes\fi{}2 matrices generated by arbitrary substitution sequences. The dimension of the underlying space of our trace map is the minimal possible, namely 3r-3 for an alphabet of size r\ensuremath{\ge}2.

### publication date

• January 1, 1994