Motivated by the subversion of “trusted” public parameters in mass-surveillance activities, this paper studies the security of NIZKs in the presence of a maliciously chosen common reference string. We provide definitions for subversion soundness, subversion witness indistinguishability and subversion zero knowledge. We then provide both negative and positive results, showing that certain combin...

We derive the noncommutative Chern-Simons action induced by Dirac fermions coupled to a background gauge field, for the fundamental , antifundamental, and the adjoint representation. We discuss properties of the noncommutative Chern-Simons action showing in particular that the Seiberg-Witten formula maps it into the standard commutative Chern-Simons action. Recent results in noncommutative geom...

Port-wine stain is a vascular malformation characterized pathologically by ectasia of superficial dermal capillaris and clinically by persistent macular erythema. The association of a port-wine stain on a limb with soft tissue swelling, with or without bony overgrowth, is termed klippel-Trenaunay syndrome. Phakomatosis pigmento-vascularis is a combination of port-wine stain and cutaneous ...

with R = dW + WW . On the fermion ground state, it is generally taken from granted that the right hand side vanishes. The goal of this paper is to study this assumption in detail. Chern-Simons gravity was first introduced in [2] in three dimensions. It was then pointed out [1] that the same construction can be carried over to five dimensions. Poincare Chern-Simons supergravities were introduced...

Two-loop calculation of Chern-Simons field theory in background field method is performed. It is explictly shown that the pole terms cancel exactly and hence two-loop finiteness of Chern-Simons field theory is verified.