Duality of Moduli and Quasiconformal Mappings in Metric Spaces
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AbstractWe prove a duality relation for the moduli of the family of curves connecting two sets and the family of surfaces separating the sets, in the setting of a complete metric space equipped with a doubling measure and supporting a Poincaré inequality. Then we apply this to show that quasiconformal mappings can be characterized by the fact that they quasi-preserve the modulus of certain families of surfaces.
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1975 ◽
Vol 19
(4)
◽
pp. 426-430
◽
2017 ◽
Vol 5
(1)
◽
pp. 138-151
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