Systematic framework for encoding Galois representations ρ: Gal (ℚ̄/ℚ) → GLₙ (K) into spectral operators H_ρ. Key innovations: Frobenius-Spectral Correspondence (Frobenius eigenvalues → operator eigenvalues), Ramification Encoding via singular potentials at bad primes, ℓ-adic structure preservation through fractal scaling. The most fundamental tool in the arithmetic spectral toolkit — Galois representations underlie modular forms (Langlands) and arithmetic geometry (étale cohomology). Applications to Artin conjecture, Serre's modularity, potential automorphy.
Thierry Marechal (Wed,) studied this question.