89 citations · 138 across the 3 of their papers we have counts for
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math.AT2002★ 36 cited
Twisted K-theory and loop groups
Daniel S. Freed
Twisted K-theory has received much attention recently in both mathematics and physics. We describe some models of twisted K-theory, both topological and geometric. Then we state a…
math-ph2002★ 13 cited
K-Theory in Quantum Field Theory
Daniel S. Freed
We survey three different ways in which K-theory in all its forms enters quantum field theory. In Part 1 we give a general argument which relates topological field theory in codime…