Journal
INDAGATIONES MATHEMATICAE-NEW SERIES
Volume 17, Issue 3, Pages 437-456Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0019-3577(06)80043-1
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The linear action of SL(n,Z(+)) induces lattice partitions on the (n - I)-dimensional simplex Delta(n-1). The notion of Farey partition raises naturally from a matricial interpretation of the arithmetical Farey sequence of order r. Such sequence is unique and, consequently, the Farey partition of order r on A I is unique. In higher dimension no generalized Farey partition is unique. Nevertheless in dimension 3 the number of triangles in the various generalized Farey partitions is always the same which fails to be true in dimension n > 3. Concerning Diciphantine approximations, it turns out that the vertices of an n-dimensional Farey partition of order r are the radial projections of the lattice points in Z(+)(n) boolean AND [0, r](n) whose coordinates are relatively prime. Moreover, we obtain sequences of multidimensional Farey partitions which converge pointwisely.
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