KO-HOMOLOGY AND TYPE I STRING THEORY
KO-HOMOLOGY AND TYPE I STRING THEORY
We study the classification of D-branes and Ramond–Ramond fields in Type I string theory by developing a geometric description of KO-homology. We define an analytic version of KO-homology using KK-theory of real C*-algebras, and construct explicitly the isomorphism between geometric and analytic KO-homology. The construction involves recasting the C ℓ …