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A solution to Banach conjecture

Published 4 Dec 2025 in math.FA and math.MG | (2512.04628v1)

Abstract: In this paper, we first prove that the origin-symmetric star body with ellipsoidal sections is an ellipsoid. Then we give a complete proof of Banach's isometric subspace problem in finite dimensions through the John ellipsoid.

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Authors (1)

  1. Ning Zhang 

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