Celebratio Mathematica

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: “On the in­dex of equivari­ant el­lipt­ic op­er­at­ors,” pp. 41–​49 in Op­er­at­or al­geb­ras, quant­iz­a­tion, and non­com­mut­at­ive geo­metry: A centen­ni­al cel­eb­ra­tion hon­or­ing John von Neu­mann and Mar­shall H. Stone. Edi­ted by R. Dor­an and R. V. Kadis­on. Con­tem­por­ary Math­em­at­ics 365. Amer­ic­an Math­em­at­ic­al So­ci­ety (Provid­ence, RI), 2004. MR 2106816 Zbl 1081.​46047 incollection

P. Baum, E. Guent­ner, and R. Wil­lett: “Ex­act­ness and the Kadis­on–Ka­plansky con­jec­ture,” pp. 1–​33 in Op­er­at­or al­geb­ras and their ap­plic­a­tions: A trib­ute to Richard V. Kadis­on (San Ant­o­nio, TX, 10–11 Janu­ary 2015). Edi­ted by R. S. Dor­an and E. Park. Con­tem­por­ary Math­em­at­ics 671. Amer­ic­an Math­em­at­ic­al So­ci­ety (Provid­ence, RI), 2016. Ded­ic­ated to Richard Kadis­on on the oc­ca­sion of his nineti­eth birth­day with af­fec­tion and ad­mir­a­tion. MR 3546676 Zbl 1366.​46045 incollection