Abstract
We study approximately differentiable functions on metric measure spaces admitting a Cheeger differentiable structure. The main result is a Whitney-type characterization of approximately differentiable functions in this setting. As an application, we prove a Stepanov-type theorem and consider approximate differentiability of Sobolev, BV, and maximal functions.
Original language | English |
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Pages (from-to) | 721-742 |
Number of pages | 22 |
Journal | Canadian Journal of Mathematics |
Volume | 66 |
Issue number | 4 |
DOIs | |
Publication status | Published - 1 Jan 2014 |
MoE publication type | A1 Journal article-refereed |
Keywords
- Approximate differentiability
- Metric space
- Strong measurable differentiable structure
- Whitney theorem