Regge Hessian Benchmark Data

Dataset accompanying the paper "A Benchmark Study of the Regge Hessian on Periodic Flat Triangulations" (E. O'Brien, 2026, submitted to Classical and Quantum Gravity). This archive contains: Full eigenvalue spectra of the projected Regge Hessian on flat T³ triangulations at N=3 (114×114 matrix) and N=4 (262×262 matrix). Gauge complement projector Q (114×189) used for all spectral computations in the paper. 100-member ensemble of triangulations with Gaussian edge‑length disorder (σ=0.1), including perturbed edge lengths, deficit angles, and Regge actions. Eigenvalues of the projected Hessian for all 100 ensemble members (11,400 eigenvalues total). Level spacing ratio data for the disorder scan from σ=0.0 to σ=0.5. All numerical data are in standard NumPy (.npz) or JSON format. The code used to generate these files is available at https://github.com/erik-obrien/regge-hessian.