28 citations · 56 across the 16 of their papers we have counts for
4 papers · 2 filters
Some conjectures on continuous rational maps into spheres
Wojciech Kucharz, Krzysztof Kurdyka
Recently continuous rational maps between real algebraic varieties have attracted the attention of several researchers. In this paper we continue the investigation of approximation…
Comparison of stratified-algebraic and topological K-theory
Wojciech Kucharz, Krzysztof Kurdyka
Stratified-algebraic vector bundles on real algebraic varieties have many desirable features of algebraic vector bundles but are more flexible. We give a characterization of the co…
Curve-rational functions
János Kollár, Wojciech Kucharz, Krzysztof Kurdyka
Let be a subset of the set of real points of a real algebraic variety . We investigate which functions are the restrictions of rational functions on …
Convexifying positive polynomials and sums of squares approximation
Krzysztof Kurdyka, Stanisław Spodzieja
We show that if a polynomial is nonnegative on a closed basic semialgebraic set , where $g…