Leynstrinsic Field Theory - UV: Dimensional Crossover and Spectral Flow

This work is part of the core Leynstrinsic Field Theory (LFT) paper series. This paper develops the ultraviolet structure of the theory, showing that the effective spectral dimension of spacetime is not fixed, but flows under renormalization. It establishes the dimensional crossover mechanism in which the effective dimension transitions from four in the infrared regime toward two in the ultraviolet. This dimensional reduction provides a natural mechanism for ultraviolet stability, suppressing divergences and enabling a consistent high-energy completion of gravitational and field dynamics. The paper formalizes the renormalization group structure governing this flow and identifies the ultraviolet attractor at reduced dimensionality. Reading order of the full framework: 1. Leyn Manifold 2. Manifold Spanner 3. Breakdown of Unitarity 4. Global Information Structure 5. Global Quantum Structure 6. Lay-trinsic Field Theory 7. LFT Paper 0 - Predictions 8. LFT Paper 1 (this work) 9. LFT Paper 2 10. LFT Paper 3 11. LFT Paper 4 12. LFT Paper 5 13. LFT Paper 6 14. LFT Paper 7 15. LFT Paper 8 16. Catch 22 Volume 1 17. Catch 22 Volume 2 18. Catch 22 Volume 3 19. Catch 22 Volume 4 20. Catch 22 Volume 5 21. Ongoing Work - Continued resolution of remaining open problems in physics (public, ongoing) Position in framework: 8 (Implications Layer) Note: . This work is already public and continues to expand in full view. Formal academic routes were approached, but access was restricted before full evaluation could occur. The material was then released openly, where it gained traction before unexplained multi-platform lockouts. This situation is now being documented in real time. I have built a public network over 25 years in the entertainment industry, and I am now using it. If you search my name, that trail is visible. The objective is simple: open evaluation. If the framework fails, it will fail in the open. If it holds, that will be equally visible. “Some enter history. Others observe it.” © Joquin Leyn Pillay