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Email: mphys10@ipb.ac.rs

Abstracts
Branislav Sazdovic
Tduality between effective string theories
We consider the open bosonic string moving in the constant background. We investigate whether the solving of the constraints obtained by applying the Dirac procedure to the boundary conditions of the open string, which leads to effective closed string theory and the Tdualization procedure are commutative. We consider the string with mixed boundary conditions. We start by applying the Dirac procedure to these conditions, which results in two parameter dependent constraints. These constraints are solved and for the solution the effective theory is obtained. On the other hand applying the Tdualization procedure to the initial theory one obtains the Tdual theory. As usual, the form of the theory is such that as if the Tdual boundary conditions are already chosen, so that the Tdual coordinates satisfy exactly the opposite set of the boundary conditions then the corresponding coordinates of the initial string. We apply the Dirac procedure to the Tdual boundary conditions, obtain the parameter dependent constraints and solve them to obtain the Tdual effective theory. We show that the effective theories of the initial and Tdual theory remain Tdual, and find the effective Tduality coordinate transformation laws.


Organizers:
Institute of Physics Belgrade (University of Belgrade)
Belgrade, Serbia
Faculty of Mathematics
(University of Belgrade)
Belgrade, Serbia
Mathematical Institute
(Serbian Academy of Sciences and Arts)
Belgrade, Serbia
Faculty of Science
(University of Kragujevac)
Kragujevac, Serbia
Coorganizers:
Serbian Academy of Sciences and Arts (SASA)
Belgrade, Serbia
Institute of Nuclear Sciences "VinÄ¨a"
(University of Belgrade)
Belgrade, Serbia
Institute of Physics
(University of Kragujevac)
Kragujevac, Serbia
Faculty of Physics
(University of Belgrade)
Belgrade, Serbia
Faculty of Sciences
(University of Novi Sad)
Novi Sad, Serbia
School of Electrical Engineering
(University of Belgrade)
Belgrade, Serbia
SEENETMTP
(Southeastern European Network in Mathematical and Theoretical Physics)
Nis, Serbia
