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Simple proof of a criterion for cones in ℝ3

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References

  1. M. A. Krasnosel'skii, Sur un critère pour qu'un domaine soit étoile (in Russian, French summary). Mat Sb. (N.S.)19, 309–310 (1946).

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  2. J. Cel, Krasnosel'skii-type characterizations for a cone. Geom. Dedicata39, 139–153 (1991).

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  3. J. Cel, Intersection formulae for the kernel of a cone. Geom. Dedicata39, 363–371 (1991).

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  4. J. Cel, Determining dimension of the kernel of a cone. Monatsh. Math.114, 83–88 (1992).

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  5. F. A.Valentine, Convex sets. New York 1964.

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  1. J. Cel

    Present address: , Warszawska 24b/56, 26-200, Końskie, Poland

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    1. J. Cel
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    The author is with the Mathematical Institute of the Polish Academy of Sciences.

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    Cel, J. Simple proof of a criterion for cones in ℝ3 . Arch. Math 60, 494–496 (1993). https://doi.org/10.1007/BF01202318

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    • DOI: https://doi.org/10.1007/BF01202318

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