The shape invariant of triangles and tri
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Ulrich Brehm
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Article
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1990
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Springer
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English
โ 658 KB
We define a fourth basic invariant, which, besides the lengths of the three sides of a triangle, determines a triangle in the complex and quaternion projective spaces CP" and HP" (n ~> 2) uniquely up to isometry. We give inequalities describing the exact range of the four basic invariants. We expres