# The General twisted open WZW string

@article{Halpern2005TheGT, title={The General twisted open WZW string}, author={Martin B. Halpern and Craig Helfgott}, journal={International Journal of Modern Physics A}, year={2005}, volume={20}, pages={923-992} }

We recently studied two large but disjoint classes of twisted open WZW strings: the open-string sectors of the WZW orientation orbifolds and the so-called basic class of twisted open WZW strings. In this paper, we discuss all T-dualizations of the basic class to construct the general twisted open WZW string — which includes the disjoint classes above as special cases. For the general case, we give the branes and twisted noncommutative geometry at the classical level and the twisted open-string…

## 24 Citations

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This is the first in a series of papers in which I investigate the orbifolds of permutation-type as candidates for new physical string systems at multiples of critical closed-string central charges.…

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We discuss how gerbes may be used to set up a consistent Lagrangian approach to the WZW models with boundary. The approach permits to study in detail possible boundary conditions that restrict the…

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To illustrate our recent discussions of the target space-times in general orbifold-string theories of permutation-type, we return here to a detailed analysis of some simple examples of this type,…

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We continue our discussion of the general bosonic prototype of the new orbifold-string theories of permutation-type. Supplementing the extended physical-state conditions of the previous paper, we…

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- Mathematics
- 2007

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### The orbifold-string theories of permutation-type: I. One twisted BRST per cycle per sector

- Mathematics
- 2010

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