Abstract
Abstract
The aim of this paper is to prove that every continuous map from a compact subset of a real algebraic variety into a sphere can be approximated by piecewise-regular maps of class $${\mathcal {C}}^k,$$
C
k
,
where k is an arbitrary nonnegative integer.
Funder
Jagiellonian University in Krakow
Publisher
Springer Science and Business Media LLC
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