Equivalence of two BV classes of functions in metric spaces, and existence of a Semmes family of curves under a 1-Poincaré inequality

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Volume Title

A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Date

2021-04-01

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Mcode

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Language

en

Pages

15
231-245

Series

Advances in Calculus of Variations, Volume 14, issue 2

Abstract

We consider two notions of functions of bounded variation in complete metric measure spaces, one due to Martio and the other due to Miranda Jr. We show that these two notions coincide if the measure is doubling and supports a 1-Poincaré inequality. In doing so, we also prove that if the measure is doubling and supports a 1-Poincaré inequality, then the metric space supports a Semmes family of curves structure.

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Keywords

AM-modulus, bounded variation

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Citation

Durand-Cartagena, E, Eriksson-Bique, S, Korte, R & Shanmugalingam, N 2021, ' Equivalence of two BV classes of functions in metric spaces, and existence of a Semmes family of curves under a 1-Poincaré inequality ', Advances in Calculus of Variations, vol. 14, no. 2, pp. 231-245 . https://doi.org/10.1515/acv-2018-0056