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texto impreso
A model for the diffusion of vector fields driven by external forces is proposed. Using the renormalization group and the epsilon-expansion, the dynamical critical properties of the model with Gaussian noise for dimensions below the critical dim[...]texto impreso
A family of diffeomorphism-invariant Seiberg-Witten deformations of gravity is constructed. In a first step Seiberg-Witten maps for an SO(1,3) gauge symmetry are obtained for constant deformation parameters. This includes maps for the vierbein,[...]
