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[几何] 有关单形二面角余弦的几个行列式

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lihpb posted 2023-11-24 12:55 |Read mode
李兴源,lihpb@qq.com.
本文通过单形射影定理,给出有关n维单形二面角余弦分别与高、棱面角、角平分面和中面有关的行列式。

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$type 有关单形二面角余弦的几个行列式.pdf (208.46 KB, Downloads: 54)

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original poster lihpb posted 2023-11-24 13:00
有没有办法判断到这些行列式所对应的二次型是否严格有定,半正定还是半负定

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