Progress in Formalizing Sphere Packing in Dimension 8

Fuente: arXiv
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Main Authors: Hariharan, Sidharth, Birkbeck, Christopher, Lee, Seewoo, Ma, Ho Kiu Gareth, Mehta, Bhavik, Poiroux, Auguste, Viazovska, Maryna
Format: Preprint
Published: 2026
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author Hariharan, Sidharth
Birkbeck, Christopher
Lee, Seewoo
Ma, Ho Kiu Gareth
Mehta, Bhavik
Poiroux, Auguste
Viazovska, Maryna
author_facet Hariharan, Sidharth
Birkbeck, Christopher
Lee, Seewoo
Ma, Ho Kiu Gareth
Mehta, Bhavik
Poiroux, Auguste
Viazovska, Maryna
contents In 2016, Viazovska famously solved the sphere packing problem in dimension $8$, using modular forms to construct a 'magic' function satisfying optimality conditions determined by Cohn and Elkies in 2003. In March 2024, Hariharan and Viazovska launched a project to formalize this solution and related mathematical facts in the Lean Theorem Prover. A significant milestone was achieved in February 2026: the result was formally verified, with the final stages of the verification done by Math, Inc.'s autoformalization model 'Gauss'. We discuss the techniques used to achieve this milestone, reflect on the unique collaboration between humans and Gauss, and discuss project objectives that remain.
format Preprint
id arxiv_https___arxiv_org_abs_2604_23468
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Progress in Formalizing Sphere Packing in Dimension 8
Hariharan, Sidharth
Birkbeck, Christopher
Lee, Seewoo
Ma, Ho Kiu Gareth
Mehta, Bhavik
Poiroux, Auguste
Viazovska, Maryna
Metric Geometry
Artificial Intelligence
Logic in Computer Science
Number Theory
In 2016, Viazovska famously solved the sphere packing problem in dimension $8$, using modular forms to construct a 'magic' function satisfying optimality conditions determined by Cohn and Elkies in 2003. In March 2024, Hariharan and Viazovska launched a project to formalize this solution and related mathematical facts in the Lean Theorem Prover. A significant milestone was achieved in February 2026: the result was formally verified, with the final stages of the verification done by Math, Inc.'s autoformalization model 'Gauss'. We discuss the techniques used to achieve this milestone, reflect on the unique collaboration between humans and Gauss, and discuss project objectives that remain.
title Progress in Formalizing Sphere Packing in Dimension 8
topic Metric Geometry
Artificial Intelligence
Logic in Computer Science
Number Theory
url https://arxiv.org/abs/2604.23468