Constructive description of Hölder-like classes on an arc in ${\mathbb{R}}^3$ by means of harmonic functions

Tatyana A. Alexeeva, Nikolay A. Shirokov

We give a constructive description of Hölder-like classes of functions on a chord-arc curve in ${\mathbb{R}}^3$ by means of a rate of approximation by function harmonic is shrinking…