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Atrium > Mathematics, Physics & Philosophy: Projection & Section are duals of each other.

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    • CommentRowNumber1.
    • CommentAuthorMurat_Aygen
    • CommentTimeFeb 11th 2019
    • (edited Feb 11th 2019)

    Section (with a flat) and projection (by an idempotent projector onto a subspace) of a polytope are duals of each other in the following sense: a section of the dual (polar body) of a polytope is the same as a projection of itself (say the primal) onto a subspace! Prove..

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