Geodesic
Convexity of Chebyshev sets with respect to tangent directions
Trudy Matematicheskogo Instituta imeni V.A. Steklova, Tome 73 (2018) no. 2, pp. 366-368 Cet article a éte moissonné depuis la source Math-Net.Ru

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     title = {Convexity of {Chebyshev} sets with~respect to tangent directions},
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A. R. Alimov; E. V. Shchepin. Convexity of Chebyshev sets with respect to tangent directions. Trudy Matematicheskogo Instituta imeni V.A. Steklova, Tome 73 (2018) no. 2, pp. 366-368. http://geodesic.mathdoc.fr/item/RM_2018_73_2_a5/

[1] A. R. Alimov, “Vypuklost ogranichennykh chebyshevskikh mnozhestv v konechnomernykh prostranstvakh s nesimmetrichnoi normoi”, Izv. Sarat. un-ta. Nov. ser. Ser. Matem. Mekh. Inform., 14:4(2) (2014), 489–497 | Zbl

[2] A. R. Alimov, I. G. Tsarkov, “Svyaznost i solnechnost v zadachakh nailuchshego i pochti nailuchshego priblizheniya”, UMN, 2016, no. 1(427), 3–84 | DOI | DOI | MR | Zbl

[3] V. S. Balaganskii, L. P. Vlasov, “Problema vypuklosti chebyshevskikh mnozhestv”, UMN, 51:6(312) (1996), 125–188 | DOI | DOI | MR | Zbl