4 papers
D-branes in Nonabelian Orbifolds with Discrete Torsion
Tamas Hauer, Morten Krogh
We study IIB string theory on the orbifold R^8/Gamma with discrete torsion where Gamma is an arbitrary subgroup of U(4). We extend some previously known identities for discrete tor…
Noncommutative Geometry and Twisted Little-String Theories
Morten Krogh
In this thesis we will discuss various aspects of noncommutative geometry and compactified Little-String theories. First we will give an introduction to the use of noncommutative g…
Instantons on a Non-commutative from Twisted (2,0) and Little-String Theories
Yeuk-Kwan E. Cheung, Ori J. Ganor, Morten Krogh +1
We show that the moduli space of the and little-string theories compactified on with R-symmetry twists is equal to the moduli space of U(1) instantons on a non-commut…
Correlation functions of the global E8 symmetry currents in the Heterotic 5-brane theory
Morten Krogh
We consider the 5-brane placed at one end of the world in the Heterotic theory. The low energy theory is a 6 dimensional superconformal theory with a…