paper

Sheaf Theory and Derived Gamma Geometry over the Non-Commutative Gamma Spectrum

arXiv:2512.00216

Abstract

We develop the geometric and homological framework for non-commutative -ary -semirings by constructing a sheaf and derived theory over their non-commutative -spectrum. Starting with a non-commutative -ary -semiring and its bi--modules, we define the space $\Spec_Γ^{\mathrm{nc}}(T)$, equip it with a Zariski-type topology, and build the structure sheaf $\mathcal{O}{\SpecΓ^{\mathrm{nc}}(T)}$ via localization at prime -ideals. We introduce quasi-coherent -sheaves, show that their category is exact with enough injectives, and interpret the derived functors $\Ext^Γ$ and $\Tor^Γ$ as global cohomological invariants on this non-commutative -space. On the derived side, we construct the category $\mathbf{D}(\QCoh(\Spec_Γ^{\mathrm{nc}}(T)))$, establish a local--global principle for $\Ext^Γ$ and $\Tor^Γ$, and prove a non-commutative local duality theorem assuming a dualizing complex. We further introduce derived non-commutative -stacks and a dg-enhancement of the spectrum, giving a spectral and motivic interpretation of homological invariants. Structural consequences include a Wedderburn--Artin type decomposition in the -ary -setting, a derived Morita theory for semisimple -ary -semirings, and a duality between the primitive -spectrum and simple objects of the derived category. These results extend our earlier commutative derived -geometry to a fully non-commutative -ary context.