Author

Bai-Ying Ren

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Review Aug 2026

Higher Kazhdan projections for one relator groups

We study the $K$-theory classes of higher Kazhdan projections of a discrete group under a spectral-gap assumption and recall how they are obtained, via the Baum--Connes assembly map, from equivariant Euler classes. After reviewing the case of virtually free groups, where the universal space for proper actions has a one...

Sanaz Pooya, Bai-Ying Ren, Hang Wang · 0 citations