S. Spodzieja

activity

20142021

most citedMetric properties of semialgebraic mappings

4 citations · 5 across the 7 of their papers we have counts for

collaborators

Showing 2015Show all

2 papers · 1 filter

math.AG2015

Convexifying positive polynomials and sums of squares approximation

Krzysztof Kurdyka, Stanisław Spodzieja

We show that if a polynomial $f \in R [x_{1}, \dots, x_{n}]$ is nonnegative on a closed basic semialgebraic set $X = {x \in R^{n} : g_{1} (x) \geq 0, \dots, g_{r} (x) \geq 0}$ , where $g…

math.AG2015★ 1 cited

Sufficiency of non-isolated singularities

Piotr Migus, Tomasz Rodak, Stanisław Spodzieja

We give, in terms of the Łojasiewicz inequality, a sufficient condition for $C^{k}$ -mappings germs of non-isolated singularity at zero to be isotopical.