We study noncommutative (NC) instantons and vortexes. At first,we construct instanton solutions which are deformations of instanton solutions oncommutative Euclidean four-space. We show that the instanton numbers of theseNC instanton solutions coincide with the commutative solutions. Next, we alsodeform vortex solutions similarly and we show that their vortex numbers are un-changed under the NC deformation.
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