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Solution of the Chebyshev approximation problem for an incompatible set of nonlinear equations

โœ Scribed by B.I. Kurlin


Publisher
Elsevier Science
Year
1970
Weight
742 KB
Volume
10
Category
Article
ISSN
0041-5553

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Starshapedness of Level Sets for Solutio
โœ Elisa Francini ๐Ÿ“‚ Article ๐Ÿ“… 1998 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 277 KB

## Abstract We introduce a measure for the starshapedness of the level sets of solutions of certain nonlinear elliptic equations in a starshaped ring ฮฉ of IR^n^. We prove that a function which characterizes the starshapedness does not attain its minimum in ฮฉ.