[Resource Topic] 2022/677: A Conjecture on Hermite Constants

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Title:
A Conjecture on Hermite Constants

Authors: Leon Mächler and David Naccache

Abstract:

As of today, the Hermite constants \gamma_n are only known for n\in \{1,2,3,4,5,6,7,8,24\}. We noted that the known values of (4/\gamma_n)^n coincide with the values of the minimal determinants of any n-dimensional integral lattice when the length of the smallest lattice element \mu is fixed to 4. Based on this observation, we conjecture that the values of \gamma_n^n for n=9,\ldots,23 are those given in Table 2. We provide a supporting argument to back this conjecture. We also provide a provable lower bound on the Hermite constants for 1\leq n\leq24.

ePrint: https://eprint.iacr.org/2022/677

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