Abstract:
We solve the problem on the uniform approximation of uniformly continuous (smooth) maps by maps having the
maximum possible local and uniform smoothness. In particular, we prove that each uniformly continuous map of the Hilbert space l2 into itself can be approximated by locally infinitely differentiable maps having a Lipschitz derivative.
Keywords:
approximation, smoothing, local smoothness, uniform smoothness, Lipschitz derivative.
This publication is cited in the following 3 articles:
Tsar'kov I.G., “Smoothing of Real-Valued Functions on Uniformly Smooth Spaces”, Russ. J. Math. Phys., 25:3 (2018), 409–414
I. G. Tsar'kov, “Weakly monotone sets and continuous selection from a near-best approximation operator”, Proc. Steklov Inst. Math., 303 (2018), 227–238
I. G. Tsar'kov, “Local and global continuous ε-selection”, Izv. Math., 80:2 (2016), 442–461