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Semilinear elliptic inequalities in the exterior of a compact set
Semilinear elliptic inequalities compact set
2010/11/24
We study the semilinear elliptic inequality $-\Delta u\geq\varphi(\delta_K(x))f(u)$ in $R^N\setminus K,$ where $\varphi, f$ are non-negative and continuous functions, $K\subset R^N$ $(N\geq 2)$ is a ...
Some geometrical results about the convex deficiency of a compact set
convex deficiency visibility
2010/9/10
The convex deficiency has been recently used to characterize the convex kernel of a set. This kind of result, central for Visibility Theory, suggests to study the convex deficiency in terms of some Vi...