0000000000805610

AUTHOR

Balázs Bárány

0000-0002-0129-8385

showing 2 related works from this author

Dimension of self-affine sets for fixed translation vectors

2018

An affine iterated function system is a finite collection of affine invertible contractions and the invariant set associated to the mappings is called self-affine. In 1988, Falconer proved that, for given matrices, the Hausdorff dimension of the self-affine set is the affinity dimension for Lebesgue almost every translation vectors. Similar statement was proven by Jordan, Pollicott, and Simon in 2007 for the dimension of self-affine measures. In this article, we have an orthogonal approach. We introduce a class of self-affine systems in which, given translation vectors, we get the same results for Lebesgue almost all matrices. The proofs rely on Ledrappier-Young theory that was recently ver…

Pure mathematicsEuclidean spaceGeneral Mathematics010102 general mathematicsTranslation (geometry)Lebesgue integration01 natural sciencesMeasure (mathematics)010104 statistics & probabilitysymbols.namesakeIterated function systemHausdorff dimensionsymbolsAffine transformation0101 mathematicsInvariant (mathematics)MathematicsJournal of the London Mathematical Society
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Ledrappier-Young formula and exact dimensionality of self-affine measures

2017

In this paper, we solve the long standing open problem on exact dimensionality of self-affine measures on the plane. We show that every self-affine measure on the plane is exact dimensional regardless of the choice of the defining iterated function system. In higher dimensions, under certain assumptions, we prove that self-affine and quasi self-affine measures are exact dimensional. In both cases, the measures satisfy the Ledrappier-Young formula. peerReviewed

local dimensionPlane (geometry)General MathematicsOpen problem010102 general mathematicsMathematical analysista111Dynamical Systems (math.DS)01 natural sciencesMeasure (mathematics)self-affine set010101 applied mathematicsIterated function systemself-affine measureHausdorff dimension37C45 28A80FOS: MathematicsApplied mathematicsAffine transformation0101 mathematicsMathematics - Dynamical Systemshausdorff dimensionMathematicsCurse of dimensionality
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