Celebratio Mathematica

G. Lusztig: “Re­col­lec­tions about my teach­er, Mi­chael Atiyah,” pp. lv–​lvi in Sir Mi­chael Atiyah: A great math­em­atician of the twen­ti­eth cen­tury, published as Asi­an J. Math. 3 : 1 (1999). Re­pub­lished in The founders of in­dex the­ory (2003) and The founders of in­dex the­ory (2009). MR 1701918 Zbl 0955.​01018 incollection

G. Lusztig: “Re­col­lec­tions about my teach­er Mi­chael Atiyah,” pp. 37–​42 in The founders of in­dex the­ory: Re­min­is­cences of and about Sir Mi­chael Atiyah, Raoul Bott, Friedrich Hirzebruch, and I. M. Sing­er. Edi­ted by S.-T. Yau. In­ter­na­tion­al Press (Somerville, MA), 2003. Re­pub­lished from Asi­an J. Math. 3:1 (1999). Also in the 2009 edi­tion of the book. incollection