 
Summary: UNIVERSITY OF CALIFORNIA, SANTA BARBARA
BERKELEY · DAVIS · IRVINE · LOS ANGELES · MERCED · RIVERSIDE · SAN DIEGO · SAN FRANCISCO
CSANTA BARBARA · SANTA CRUZ
Geometry, Topology, and Physics Seminar
Mathematical Foundations of Orientifolds
Gregory Moore
Rutgers University
Friday, July 18, 2008, 4:00 p.m.
Room 6635 South Hall
Abstract: We give an overview of a project with Dan Freed and Jacques Distler
whose goal is a precise and general formulation of orientifold backgrounds of type II
string theory. A central theme is the use of twisted equivariant differential generalized
cohomology theories. The Bfield twists a version of equivariant KR theory, while the
RR fields and currents are formulated in terms of a twisted equivariant differential
KR theory. One important new result is a formula for the RR charge of an orientifold
plane at the Ktheory level, which lifts the standard result of MoralesScruccaSerone
in integral cohomology.
Information about future meetings of this seminar can be found at
http://www.math.ucsb.edu/~malmendier/GTPseminar/
