Recursive Black Hole Cosmology — Research Repository

Browser-native computational sandbox accompanying the preprint Recursive Black Hole Cosmology: An Interpretive Framework (Zlotnikov, 2026, DOI: 10.5281/zenodo.18783687). The repository contains two tools: BH–FRW Evolution Sandbox — primary tool. Integrates full FRW cosmological evolution under the geometric ansatz Λ = 1/Rs², where Rs is the Schwarzschild radius of a parent black hole. Parent mass M is the sole inherited parameter. Identifies a narrow mass window (log₁₀ M/M☉ ≈ 22–23) producing ΛCDM-compatible late-time dynamics without a free dark energy parameter. This is the central structural result of the project. Fit Analysis & Driver Interface — early exploratory tool. Maps accretion-coupled Λ(t) dynamics across parameter space. Retained as a methodological record. All tools are structural consistency checks. No predictive claims are made.