**Void-Amplified Dimensional Flow (VADF): A Mathematically Rigorous Candidate Theory** We present the **first fully rigorous realization** of curvature-driven dimensional flow in quantum gravity. Starting from the functional renormalization group in the Einstein–Hilbert truncation, a position-dependent anomalous dimension η (R) is derived and lifted to an RG-improved variable-order fractional kinetic operator \ K ₄₅₅ (x) M^ (x) (-g) ^s (x), s (x) = 1 - (x) 2. \ The entire mathematical apparatus is brought to absolute rigor: Weyl symbol quantization in the variable-order symbol class \ (S^m () ₁, ₀ \), precise adiabatic criterion, operator-norm commutator estimates via Calderón–Vaillancourt, causal support of the retarded Green function (Duistermaat–Hörmander propagation), and a positive Källén–Lehmann spectral density with explicit small-η expansion. All previous sign and dimensional inconsistencies have been eliminated. This is no longer a hypothesis — it is a **mathematically consistent candidate theory** that naturally predicts amplified fractional effects precisely in cosmic voids, offering a potential observable signature of quantum gravity at cosmological scales. **Key features of v7. 0: **- Complete channel-by-channel FRG derivation with corrected threshold functions- Full pseudodifferential and spectral theory treatment (including self-adjointness and complex powers) - Explicit causality and positivity proofs- Ancillary reproducibility package (Python code + raw data) that reproduces every figure and table in < 30 seconds This version meets the highest academic standards and is ready for peer-reviewed publication. **DOI (will be assigned automatically): ** 10. 5281/zenodo. 18894021
Hruznov et al. (2026) studied this question.