Abstract
Let Θ be a point in R n. We are concerned with the approximation to Θ by rational linear subvarieties of dimension d for 0 ≤ d ≤ n−1. To that purpose, we introduce various convex bodies in the Grassmann algebra Λ(R n+1). It turns out that our convex bodies in degree d are the dth compound, in the sense of Mahler, of convex bodies in degree one. A dual formulation is also given. This approach enables us both to split and to refine the classical Khintchine transference principle.
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Bugeaud, Y., Laurent, M. On transfer inequalities in Diophantine approximation, II. Math. Z. 265, 249–262 (2010). https://doi.org/10.1007/s00209-009-0512-0
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DOI: https://doi.org/10.1007/s00209-009-0512-0