14 citations · 36 across the 7 of their papers we have counts for
7 papers
Orientifolds for F-theory on K3 Surfaces
Charles Doran, Andreas Malmendier, Stefan Mendez-Diez +1
We study F-theory orientifolds, starting with products of two elliptic curves, but focusing mostly on a family of K3 surfaces, lattice polarized by the rank-17 lattice $\langle 8 \…
Geometrization of -Extended -Dimensional Supersymmetry Algebras II
Charles Doran, Kevin Iga, Jordan Kostiuk +1
The problem of classifying off-shell representations of the -extended one-dimensional super Poincaré algebra is closely related to the study of a class of decorated -regular…
N=4 and N=8 SUSY Quantum Mechanics and Klein's Vierergruppe
S. James Gates, Tristan Hübsch, Kevin Iga +1
Sets of signed permutation matrices satisfying the GR(4,4) algebra are shown to be, up to sign, left cosets of Klein's famous Vierergruppe. In this way we verify the count done by…
String theory on elliptic curve orientifolds and KR-theory
Charles Doran, Stefan Mendez-Diez, Jonathan Rosenberg
We analyze the brane content and charges in all of the orientifold string theories on space-times of the form E x R^8, where E is an elliptic curve with holomorphic or anti-holomor…
Geometrization of N-Extended 1-Dimensional Supersymmetry Algebras
Charles Doran, Kevin Iga, Jordan Kostiuk +2
The problem of classifying off-shell representations of the -extended one-dimensional super Poincaré algebra is closely related to the study of a class of decorated -regular,…
T-duality For Orientifolds and Twisted KR-theory
Charles Doran, Stefan Mendez-Diez, Jonathan Rosenberg
D-brane charges in orientifold string theories are classified by the KR-theory of Atiyah. However, this is assuming that all O-planes have the same sign. When there are O-planes of…
K-theoretic matching of brane charges in S- and U-duality
Stefan Mendez-Diez, Jonathan Rosenberg
We discuss K-theoretic matching of D-brane charges in the string duality between type I on the 4-torus and type IIA on a K3 surface. This case is more complex than the familiar cas…