2007
DOI: 10.4171/rmi/524
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Strong $A_{\infty}$-weights and scaling invariant Besov capacities

Abstract: This article studies strong A ∞ -weights and Besov capacities as well as their relationship to Hausdorff measures. It is shown that in the Euclidean space R n with n ≥ 2, whenever n − 1 < s ≤ n, a function u yields a strong A ∞ -weight of the form w = e nu if the distributional gradient ∇u has sufficiently small || · || L s,n−s (R n ; R n )-norm. Similarly, it is proved that if 2 ≤ n < p < ∞, then w = e nu is a strong A ∞ -weight whenever the BesovLower estimates of the Besov B p -capacities are obtained in te… Show more

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Cited by 18 publications
(19 citation statements)
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“…Vähäkangas [18] studiedĊ α,1 (·, ) and characterized the fractional inequality with fractional relative isocapacitary and isoperimetric inequalities. They gave a sufficient condition and examples so that the fractional relative capacity is bounded by the fractional perimeter of its interior; •Ċ 2n/p,p (·, ) was studied by Costen [13].…”
Section: Existing Resultsmentioning
confidence: 99%
“…Vähäkangas [18] studiedĊ α,1 (·, ) and characterized the fractional inequality with fractional relative isocapacitary and isoperimetric inequalities. They gave a sufficient condition and examples so that the fractional relative capacity is bounded by the fractional perimeter of its interior; •Ċ 2n/p,p (·, ) was studied by Costen [13].…”
Section: Existing Resultsmentioning
confidence: 99%
“…The following theorem will show, among other things, that this is true in the case of the (p, q) relative capacity. In our thesis [4] we studied only the case 1 < n = p < ∞. In [6] we extended the results from [4] to the case 1 < p < ∞ and n > 1.…”
Section: Sobolev-lorentz Capacitymentioning
confidence: 99%
“…In our thesis [4] we studied only the case 1 < n = p < ∞. In [6] we extended the results from [4] to the case 1 < p < ∞ and n > 1. The following theorem generalizes Theorem V.23 from [4] and Theorem 4.1.1 from [6] to the case 1 < p < ∞ and n = 1.…”
Section: Sobolev-lorentz Capacitymentioning
confidence: 99%
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