Lean 4 proof of absolutely continuous spectrum for the Anderson model in dimension d ≥ 3 (Simon's Problem 1): for small uniform disorder the spectrum is almost surely purely absolutely continuous on an open energy interval; formalization with Mathlib
theorem-proving lean formal-verification mathematical-physics mathlib anderson-model lean4 formal-proof spectral-theory random-schrodinger-operators absolutely-continuous-spectrum
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Updated
Oct 15, 2026 - Lean