Equivariant Comparison of Quantum Homogeneous Spaces |
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Authors: | Makoto Yamashita |
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Institution: | 1. Dipartimento di Matematica, Università Degli Studi di Roma “Tor Vergata”, Via Della Ricerca Scientifica 1, 00133, Rome, Italy 2. Department of Mathematics, Ochanomizu University, Ohtsuka 2-1-1, Bunkyo-ku, 112-8610, Tokyo, Japan
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Abstract: | We consider the quantum homogeneous spaces of the q-deformation of simply connected simple compact Lie groups and their Poisson–Lie quantum subgroups. We prove the deformation invariance in the equivariant KK-theory with respect to the translation action by maximal tori. This extends a result of Neshveyev and Tuset to the equivariant setting. As applications, we prove the ring isomorphism of the K-homology of G q with respect to the coproduct of C(G q ), and an analogue of the Borsuk–Ulam theorem for quantum spheres. |
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