Rough traces of $BV$ functions in metric measure spaces

Autor: Buffa, Vito, Miranda Jr, Michele
Rok vydání: 2019
Předmět:
Zdroj: Annales Fennici Mathematici, 46(1), 309-333 (2021)
Druh dokumentu: Working Paper
DOI: 10.5186/aasfm.2021.4625
Popis: Following a Maz'ya-type approach, we adapt the theory of rough traces of functions of bounded variation ($BV$) in the context of doubling metric measure spaces supporting a Poincar\'e inequality. This eventually allows for an integration by parts formula involving the rough trace of such a function. We then compare our analysis with the discussion done in a recent work by P. Lahti and N. Shanmugalingam, where traces of $BV$ functions are studied by means of the more classical Lebesgue-point characterization, and we determine the conditions under which the two notions coincide.
Databáze: arXiv