Celebratio Mathematica

R. As­key: “Jac­obi poly­no­mi­al ex­pan­sions with pos­it­ive coef­fi­cients and im­bed­dings of pro­ject­ive spaces,” Bull. Am. Math. Soc. 74 : 2 (1968), pp. 301–​304. To I. J. Schoen­berg on his 65th birth­day. MR 220987 Zbl 0167.​35003 article

R. As­key, I. J. Schoen­berg, and A. Sharma: “Haus­dorff’s mo­ment prob­lem and ex­pan­sions in Le­gendre poly­no­mi­als,” J. Math. Anal. Ap­pl. 86 : 1 (March 1982), pp. 237–​245. MR 649868 Zbl 0483.​44012 article

R. As­key and C. de Boor: “In me­mori­am: I. J. Schoen­berg (1903–1990),” J. Ap­prox. The­ory 63 : 1 (October 1990), pp. 1–​2. MR 1074077 Zbl 0703.​01012 article