In this note we prove that on metric measure spaces, functions of least gradient, as well as local minimizers of the area functional (after modification on a set of measure zero) are continuous everywhere outside their jump sets. As a tool, we develop some stability properties of sequences of least gradient functions. We also apply these tools to prove a maximum principle for functions of least gradient that arise as solutions to a Dirichlet problem.
@article{bwmeta1.element.doi-10_1515_agms-2015-0009, author = {H. Hakkarainen and R. Korte and P. Lahti and N. Shanmugalingam}, title = {Stability and Continuity of Functions of Least Gradient}, journal = {Analysis and Geometry in Metric Spaces}, volume = {3}, year = {2015}, zbl = {1318.26028}, language = {en}, url = {http://dml.mathdoc.fr/item/bwmeta1.element.doi-10_1515_agms-2015-0009} }
H. Hakkarainen; R. Korte; P. Lahti; N. Shanmugalingam. Stability and Continuity of Functions of Least Gradient. Analysis and Geometry in Metric Spaces, Tome 3 (2015) . http://gdmltest.u-ga.fr/item/bwmeta1.element.doi-10_1515_agms-2015-0009/
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