On the extension of Whitney ultrajets
Volume 245 / 2019
Studia Mathematica 245 (2019), 255-287
MSC: 26E10, 30D60, 46E10, 58C25.
DOI: 10.4064/sm170906-23-11
Published online: 12 July 2018
Abstract
We prove necessary and sufficient conditions for the validity of Whitney’s extension theorem in the ultradifferentiable Roumieu setting with controlled loss of regularity.