Unraveling the holomorphic twist: central charges by Bomans, P, Wu, J

“…We investigate the algebraic structure underlying the holomorphic twist of N = 1 superconformal field theories in four dimensions. …”

C-infinity algebraic geometry with corners by Francis-Staite, K, Joyce, D

“…If X is a manifold then the set C∞(X) of smooth functions f:X→ℝ is a C∞-ring, a rich algebraic structure with many operations. C∞-schemes are schemes over C∞-rings, a way of using Algebro-Geometric techniques in Differential Geometry. …”