Tag Archives: polytope-duality

A Mysterious Duality Relation for 4-dimensional Polytopes.

Posted on June 6, 2018 by Gil Kalai

Two dimensions Before we talk about 4 dimensions let us recall some basic facts about 2 dimensions: A planar polygon has the same number of vertices and edges. This fact, which just asserts that the Euler characteristic of is zero, … Continue reading →

Posted in Combinatorics, Convex polytopes | Tagged polytope-duality | 6 Comments

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Tag Archives: polytope-duality

A Mysterious Duality Relation for 4-dimensional Polytopes.

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