Chinese Quarterly Journal of Mathematics ›› 1992, Vol. 7 ›› Issue (2): 49-51.
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Abstract: 若n维单形A=A1A2…An+r的外接球心O位于其内部,单形A与单形Ai=A1A2…Ai-1OAi+1…An+1的外接球半径分别为R与Ri（i=1,2,…,n+1）,本文证明了 ... :,而等号成立的充分必要条件为单形A正则。
苏化明. 与单形外接球心有关的一个不等式[J]. Chinese Quarterly Journal of Mathematics, 1992, 7(2): 49-51.
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https://sxjk.magtechjournal.com/EN/Y1992/V7/I2/49
