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Given a point , the point which is the antipodal point of is said to be the antipode of .
The term antipode is also used in plane geometry. Given a central conic (or circle) and a point lying on it, draw a line passing through and the center of the conic. Then the antipode of is other point lying on the conic through which the line passes.
The antipode of a vertex in a graph is a vertex at greatest possible distance from . An antipodal graph is then defined as a connected graph in which each vertex has exactly one antipode (Gorovoy and Zmiaikou 2021).
Gorovoy, D. and Zmiaikou, D. "On Graphs with Unique Geoodesics and Antipodes." 19 Nov 2021. https://arxiv.org/abs/2111.09987.
Tietze, H. Famous Problems of Mathematics: Solved and Unsolved Mathematics Problems from Antiquity to Modern Times. New York: Graylock Press, p. 25, 1965.
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مخاطر عدم علاج ارتفاع ضغط الدم
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اختراق جديد في علاج سرطان البروستات العدواني
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مدرسة دار العلم.. صرح علميّ متميز في كربلاء لنشر علوم أهل البيت (عليهم السلام)
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