| R. Askey, Commentary on a footnote, I. J. Schoenberg, Collected papers, vol. I , Carl de Boor, ed., (Birkhauser, Boston, 1988) 192-193. |
....[36] proved that in this case (p i ; p j ) q 0, i 6= j, i; j = 0; n are sucient conditions for a nk to be non negative. Trench [33] veri ed Wilson s conditions for weight functions of the above form thus proving Askey s conjecture. A short account of these results is given by Askey [3]. Let p n and q n ; n = 0; 1; satisfy the recurrence relations xp n (x) n (p) p n 1 (x) n (p) p n (x) n (p) p n 1 (x) xq n (x) n (q) q n 1 (x) n (q) q n (x) n (q) q n 1 (x) where n (p) n (q) n (q) and n (q) are positive. Szwarc [32] proved that if all ....
R. Askey, Commentary on a footnote, I. J. Schoenberg, Collected papers, vol. I , Carl de Boor, ed., (Birkhauser, Boston, 1988) 192-193.
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R. Askey, "Commentary on a Footnote," pgs. 192-193 in I. J. Schoenberg - Selected Papers, Volume I, ed. by Carl de Boor, Birkhauser, New York, 1988.
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