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About:Equichordal point problem

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In Euclidean plane geometry, the equichordal point problem is the question whether a closed planar convex body can have two equichordal points. The problem was originally posed in 1916 by Fujiwara and in 1917 by Wilhelm Blaschke, Hermann Rothe, and Roland Weitzenböck. A generalization of this problem statement was answered in the negative in 1997 by Marek R. Rychlik.

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  • In Euclidean plane geometry, the equichordal point problem is the question whether a closed planar convex body can have two equichordal points. The problem was originally posed in 1916 by Fujiwara and in 1917 by Wilhelm Blaschke, Hermann Rothe, and Roland Weitzenböck. A generalization of this problem statement was answered in the negative in 1997 by Marek R. Rychlik. (en)
  • Em geometria euclidiana plana, o problema do ponto equicordal é a questão se um plano fechado pode ter dois . O problema foi originalmente colocado em 1916 por Fujiwara e em 1917 por Wilhelm Blaschke, Hermann Rothe e Roland Weitzenböck. Uma generalização da afirmação deste problema recebeu resposta negativa em 1997 por . (pt)
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  • In Euclidean plane geometry, the equichordal point problem is the question whether a closed planar convex body can have two equichordal points. The problem was originally posed in 1916 by Fujiwara and in 1917 by Wilhelm Blaschke, Hermann Rothe, and Roland Weitzenböck. A generalization of this problem statement was answered in the negative in 1997 by Marek R. Rychlik. (en)
  • Em geometria euclidiana plana, o problema do ponto equicordal é a questão se um plano fechado pode ter dois . O problema foi originalmente colocado em 1916 por Fujiwara e em 1917 por Wilhelm Blaschke, Hermann Rothe e Roland Weitzenböck. Uma generalização da afirmação deste problema recebeu resposta negativa em 1997 por . (pt)
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  • Equichordal point problem (en)
  • Problema do ponto equicordal (pt)
  • Задача об эквихордном центре (ru)
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