Delphi.science

Sparse multi-base representations and asymptotic Hadamard existence

Source: github.com/L-iet/HadamardBound/tree/4b8a125af5c8c94e183df8d…

Joshua Mark

Palomar Registrypalomar/PALOMAR-2026-11-03-000024Nov 3, 2026math.COscore 0

Lean formalization of sparse multi-base representations and unconditional asymptotic Hadamard existence, gap, flatness and conditioning bounds. The required logarithm-ratio separation is proved independently from mathlib.

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