Celebratio Mathematica

P. Baum and R. G. Douglas: “In­dex the­ory, bor­d­ism, and \( K \)-ho­mo­logy,” pp. 1–​31 in Op­er­at­or al­geb­ras and \( K \)-the­ory (San Fran­cisco, 7–8 Janu­ary 1981). Edi­ted by R. G. Douglas and C. Schochet. Con­tem­por­ary Math­em­at­ics 10. Amer­ic­an Math­em­at­ic­al So­ci­ety (Provid­ence, RI), 1982. MR 658506 Zbl 0507.​55004 incollection

P. Baum and R. G. Douglas: “\( K \) ho­mo­logy and in­dex the­ory,” pp. 117–​173 in Op­er­at­or al­geb­ras and ap­plic­a­tions (King­ston, ON, 14 Ju­ly–2 Au­gust 1980), part 1. Edi­ted by R. V. Kadis­on. Pro­ceed­ings of Sym­po­sia in Pure Math­em­at­ics 38. Amer­ic­an Math­em­at­ic­al So­ci­ety (Provid­ence, RI), 1982. MR 679698 Zbl 0532.​55004 incollection

P. Baum and A. Connes: “Chern char­ac­ter for dis­crete groups,” pp. 163–​232 in A fête of to­po­logy: Pa­pers ded­ic­ated to Itiro Tamura. Edi­ted by Y. Mat­sumoto, T. Mizutani, and S. Mor­ita. Aca­dem­ic Press (Bo­ston), 1988. MR 928402 Zbl 0656.​55005 incollection

P. Baum and A. Connes: “\( K \)-the­ory for dis­crete groups,” pp. 1–​20 in Op­er­at­or al­geb­ras and ap­plic­a­tions (War­wick, UK, 20–25 Ju­ly 1987), vol. 1: Struc­ture the­ory; \( K \)-the­ory, geo­metry and to­po­logy. Edi­ted by D. Evans and M. Take­saki. Lon­don Math­em­at­ic­al So­ci­ety Lec­ture Note Series 135. Cam­bridge Uni­versity Press, 1988. MR 996437 Zbl 0685.​46041 incollection

P. Baum, A. Connes, and N. Hig­son: “Clas­si­fy­ing space for prop­er ac­tions and \( K \)-the­ory of group \( C^* \)-al­geb­ras,” pp. 241–​291 in \( C^* \)-al­geb­ras: 1943–1993 (San Ant­o­nio, TX, 13–14 Janu­ary 1993). Edi­ted by R. S. Dor­an. Con­tem­por­ary Math­em­at­ics 167. Amer­ic­an Math­em­at­ic­al So­ci­ety (Provid­ence, RI), 1994. MR 1292018 Zbl 0830.​46061 incollection