Celebratio Mathematica

P. Baum, N. Hig­son, and T. Schick: “On the equi­val­ence of geo­met­ric and ana­lyt­ic $K$-ho­mo­logy,” pp. 1–​24 in Spe­cial is­sue: In hon­or of Robert D. MacPh­er­son, Part 3, published as Pure Ap­pl. Math. Q. 3 : 1. In­ter­na­tion­al Press (Som­merville, MA), 2007. MR 2330153 Zbl 1146.​19004 incollection

P. Baum, N. Hig­son, and T. Schick: “A geo­met­ric de­scrip­tion of equivari­ant $K$-ho­mo­logy for prop­er ac­tions,” pp. 1–​22 in Quanta of maths: Pro­ceed­ings of meet­ing in hon­or of Alain Connes’ 60th birth­day. Edi­ted by E. Blan­chard, D. Ell­wood, M. Khalkhali, M. Mar­colli, H. Mo­scov­ici, and S. Popa. Clay Math­em­at­ics Pro­ceed­ings 11. Amer­ic­an Math­em­at­ic­al So­ci­ety (Provid­ence, RI), 2010. MR 2732043 Zbl 1216.​19006 ArXiv 0907.​2066 incollection

P. Baum, H. Oy­ono-Oy­ono, T. Schick, and M. Wal­ter: “Equivari­ant geo­met­ric $K$-ho­mo­logy for com­pact Lie group ac­tions,” Abh. Math. Semin. Univ. Ham­bg. 80 : 2 (2010), pp. 149–​173. MR 2734682 Zbl 1242.​19006 article