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悠闲数学娱乐论坛(第3版)
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[猜想] 有关四面体棱长和二面角的几何不等式
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[猜想] 有关四面体棱长和二面角的几何不等式
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lihpb
lihpb
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Post time 2023-12-5 13:30
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lihpb
Post time 2023-12-5 13:30
这个只是猜想，我证不出来，我构造过好几个不同的四面体，都能满足这个不等式。
如果这个不等式不成立的话，希望能给个反例出来，目前我找不到反例
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lihpb
Post time 2023-12-5 17:31
From the mobile phone
现在我已经证出来了，可以有更强的参数推广形式，证明过程我改天再写
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