Extensions of vector-valued functions with preservation of derivatives
arXiv:1602.05750 · doi:10.1016/j.jmaa.2016.11.080
Abstract
Let and be Banach or normed linear spaces and a closed set. We apply our recent extension theorem for vector-valued Baire one functions arXiv:1512.03717 to obtain an extension theorem for vector-valued functions with pre-assigned derivatives, with preservation of differentiability (at every point where the pre-assigned derivative is actually a derivative), preservation of continuity, preservation of (pointwise) Lipschitz property and (for finite dimensional domain ) preservation of strict differentiability and global (eventually local) Lipschitz continuity.
21 pages, 2 figures. Depends on arXiv:1512.03717