We consider the closed string moving in a weakly curved background and its totally T-
dualized background. Using T-duality transformation laws, we find the structure of the …

We consider type IIB superstring theory with embedded D5-brane and choose boundary
conditions which preserve half of the initial supersymmetry. In the canonical approach that …

The world-sheet quantum conformal invariance can be realized in the presence of the
conformal factor F by inclusion of the Liouville term. In the background with linear dilaton …

Using the canonical method, we investigate the Dp-brane world-volume noncommutativity in
a weakly curved background. The term “weakly curved” means that, in the leading order, the …

In this article we consider closed bosonic string in the presence of constant metric and Kalb‐
Ramond field with one non‐zero component,, where field strength H is infinitesimal. Using …

A bstract In this article we consider T-dualization of the 3D closed bosonic string in the
weakly curved background—constant metric and Kalb-Ramond field with one nonzero …

We investigate the open string propagation in a weakly curved background with the Kalb–
Ramond field containing an infinitesimal part, linear in the coordinate. Solving the Neumann …

We choose such boundary conditions for open IIB superstring theory which preserve N= 1
SUSY. The explicit solution of the boundary conditions yields effective theory which is …

In this article we establish the relationship between fermionic T duality and momenta
noncommutativity. This is an extension of a known relation between bosonic T duality and …

In the present paper we investigate noncommutativity of D9 and D5-brane world-volumes
embedded in space-time of type IIB superstring theory. Boundary conditions, which preserve …