Decoupling for Ruled Hypersurfaces Generated by a Curve

We extend previous work on the two-dimensional developable tangent surface to its higher dimensional analogues $\mathfrak{M}\subset {\mathbb{R}}^{n+1}$. The approach here similarly applies cylindrical approximate decoupling at its core, albeit in a new format. However, the presence of additional rulings as $n$ increases necessitates a case-by-case analysis, which in itself reveals interesting aspects of the geometry of $\mathfrak{M}$. The contributions of this paper can be viewed as culminating in the optimal ${\mathrm{\ell }}^2(L^p)$ decoupling over Frenet boxes approximating a suitably defined, arbitrarily thin neighborhood of a curve $\phi$.