Noncommutative Topological Half-flat Gravity
arXiv:hep-th/0402168 · doi:10.1007/s10714-005-0057-4
Abstract
We formulate a noncommutative description of topological half-flat gravity in four dimensions. BRST symmetry of this topological gravity is deformed through a twisting of the usual BRST quantization of noncommutative gauge theories. Finally it is argued that resulting moduli space of instantons is characterized by the solutions of a noncommutative version of the Plebanski's heavenly equation.
12+1 pages, revtex4, no figures