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The minimum number of acute dihedral angles of a simplex
Authors:Gangsong Leng
Institution:Department of Mathematics, Shanghai University, Shanghai, 200436, People's Republic of China
Abstract:For any $n$-dimensional simplex $\Omega\subset R^n$, we confirm a conjecture of Klamkin and Pook (1988) that there are always at least $n$ acute dihedral angles in $\Omega$.

Keywords:Simplex  dihedral angle  dual basis
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