Arbitrarily Long Arithmetic Progressions for Continued Fractions of Laurent Series
2013
Abstract A famous theorem of Szemer'edi asserts that any subset of integers with positive upper density contains arbitrarily arithmetic progressions. Let q be a finite field with q elements and q (( X −1 )) be the power field of formal series with coefficients lying in q . In this paper, we concern with the analogous Szemeredi problem for continued fractions of Laurent series: we will show that the set of points x ∈ q (( X −1 )) of whose sequence of degrees of partial quotients is strictly increasing and contain arbitrarily long arithmetic progressions is of Hausdorff dimension 1/2.
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