Please use this identifier to cite or link to this item: https://doi.org/10.2140/pjm.2011.250.67
Title: Self-improving properties of inequalities of poincaré type on s-John Domains
Authors: Chua, S.-K. 
Wheeden, R.L.
Keywords: δ-doubling
Domains with cusps
Global Poincaré estimates
Power-type weights
Quasimetric spaces
Reverse doubling
Issue Date: 2011
Citation: Chua, S.-K., Wheeden, R.L. (2011). Self-improving properties of inequalities of poincaré type on s-John Domains. Pacific Journal of Mathematics 250 (1) : 67-108. ScholarBank@NUS Repository. https://doi.org/10.2140/pjm.2011.250.67
Abstract: We derive weak- and strong-type global Poincaré estimates over s-John domains in spaces of homogeneous type. The results show that Poincaré inequalities over quasimetric balls with given exponents and weights are self-improving in the sense that they imply global inequalities of a similar kind, but with improved exponents and larger classes of weights. The main theorems are applications of a geometric construction for s-John domains together with self-improving results in more general settings, both derived in our companion paper J. Funct. Anal. 255 (2008), 2977-3007. We have reduced our assumption on the principal measure μ to be just reverse doubling on the domain instead of the usual assumption of doubling. While the primary case considered in the literature is p ≤ q, we will also study the case 1 ≤ q < p. © 2011 by Pacific Journal of Mathematics.
Source Title: Pacific Journal of Mathematics
URI: http://scholarbank.nus.edu.sg/handle/10635/104087
ISSN: 00308730
DOI: 10.2140/pjm.2011.250.67
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