Abstract
The Poincaré-type inequality is a unification of various inequalities including the F-Sobolev inequalities, Sobolev-type inequalities, logarithmic Sobolev inequalities, and so on. The aim of this paper is to deduce some unified upper and lower bounds of the optimal constants in Poincaré-type inequalities for a large class of normed linear (Banach, Orlicz) spaces in terms of capacity. The lower and upper bounds differ only by a multiplicative constant, and so the capacitary criteria for the inequalities are also established. Both the transient and the ergodic cases are treated. Besides, the explicit lower and upper estimates in dimension one are computed.
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Mathematics Subject Classifications (2000)
60J55, 31C25, 60J35, 47D07.
Research supported in part NSFC (No. 10121101) and 973 Project.
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Chen, MF. Capacitary Criteria for Poincaré-Type Inequalities. Potential Anal 23, 303–322 (2005). https://doi.org/10.1007/s11118-005-2609-3
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DOI: https://doi.org/10.1007/s11118-005-2609-3