249 citations · 3.8k across the 65 of their papers we have counts for
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D-branes, Discrete Torsion and the McKay Correspondence
Paul S. Aspinwall, M. Ronen Plesser
We analyze the D-branes of a type IIB string theory on an orbifold singularity including the possibility of discrete torsion following the work of Douglas et al. First we prove som…
A Note on the Equivalence of Vafa's and Douglas's Picture of Discrete Torsion
Paul S. Aspinwall
For a general nonabelian group action and an arbitrary genus worldsheet we show that Vafa's old definition of discrete torsion coincides with Douglas's D-brane definition of discre…
Lie Groups, Calabi-Yau Threefolds, and F-Theory
Paul S. Aspinwall, Sheldon Katz, David R. Morrison
The F-theory vacuum constructed from an elliptic Calabi-Yau threefold with section yields an effective six-dimensional theory. The Lie algebra of the gauge sector of this theory an…
Compactification, Geometry and Duality: N=2
Paul S. Aspinwall
These are notes based on lectures given at TASI99. We review the geometry of the moduli space of N=2 theories in four dimensions from the point of view of superstring compactificat…