110 citations · 264 across the 7 of their papers we have counts for
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math.AT2003★ 89 cited
Twisted K-theory and loop group representations
Daniel S. Freed, Michael J. Hopkins, Constantin Teleman
This is the third paper of a series relating the equivariant twisted -theory of a compact Lie group to the ``Verlinde space'' of isomorphism classes of projective lowest-wei…
math.KT2003
A Variant of K-theory: K_{+-}
Michael Atiyah, Michael Hopkins
We describe a variant of K-theory for spaces with involution, built from vector bundles which are sent to their negative under the involution.