23 citations · 119 across the 20 of their papers we have counts for
3 papers · 1 filter
Moduli Spaces of Connections and B-fields from T-duality with H-flux
Fei Han, Pedram Hekmati, Tsuyoshi Kato +1
We study the geometry of mixed fields, consisting of a connection and a -field on a principal circle bundle over a Riemann surface, from the perspective of gauge theory and T-du…
Sign choices for orientifolds
Pedram Hekmati, Michael K. Murray, Richard J. Szabo +1
We analyse the problem of assigning sign choices to O-planes in orientifolds of type II string theory. We show that there exists a sequence of invariant -gerbes with ,…
Real bundle gerbes, orientifolds and twisted KR-homology
Pedram Hekmati, Michael K. Murray, Richard J. Szabo +1
We consider Real bundle gerbes on manifolds equipped with an involution and prove that they are classified by their Real Dixmier-Douady class in Grothendieck's equivariant sheaf co…