Abstract
It is shown that curvature-dimension bounds CD(N,K) for a metric measure space (X,d,m) in the sense of Sturm imply a weak L 1-Poincaré-inequality provided (X,d) has m-almost surely no branching points.
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Work supported by the Alexander von Humboldt-Foundation (AvH).
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von Renesse, MK. On local Poincaré via transportation. Math. Z. 259, 21–31 (2008). https://doi.org/10.1007/s00209-007-0206-4
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DOI: https://doi.org/10.1007/s00209-007-0206-4