Mathematics > Analysis of PDEs
[Submitted on 16 Jan 2009 (v1), last revised 16 Sep 2009 (this version, v2)]
Title:Kummer configurations and $S_m-$reflector problems: Hypersurfaces in $\Rn$ with given mean intensity
View PDFAbstract: For a congruence of straight lines defined by a hypersurface in $R^{n+1}, n \geq 1,$ and a field of reflected directions created by a point source we define the notion of intensity in a tangent direction and introduce elementary symmetric functions $S_m, m=1, 2,...,n,$ of {\it principal intensities}. The problem of existence and uniqueness of a closed hypersurface with prescribed $S_n$ is the "reflector problem" extensively studied in recent years. In this paper we formulate and give sufficient conditions for solvability of an analogous problem in which the mean intensity $S_1$ is a given function.
Submission history
From: Vladimir Oliker [view email][v1] Fri, 16 Jan 2009 16:20:55 UTC (16 KB)
[v2] Wed, 16 Sep 2009 19:03:08 UTC (18 KB)
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