Celebratio Mathematica

A. Fia­lowski and D. Fuchs: “Sin­gu­lar de­form­a­tions of Lie al­geb­ras: Ex­ample: De­form­a­tions of the Lie al­gebra \( L_1 \),” pp. 77–​92 in Top­ics in sin­gu­lar­ity the­ory: V. I. Arnold’s 60th an­niversary col­lec­tion. Edi­ted by A. Khovanskiĭ, A. Varchen­ko, and V. Vassiliev. AMS Trans­la­tions. Series 2 180. Amer­ic­an Math­em­at­ic­al So­ci­ety (Provid­ence, RI), 1997. MR 1767113 Zbl 0883.​17023 ArXiv q-​alg/​9706027 incollection