Abstract.
For a real interval I of positive length, we prove a necessary and sufficient condition which ensures that the continuous L p (0 < p ⩽ ∞) norm of a weighted polynomial, P n w n, deg P n ⩽ n, n ⩾ 1 is in an nth root sense, controlled by its corresponding discrete Hölder norm on a very general class of discrete subsets of I. As a by product of our main result, we establish inequalities and theorems dealing with zero distribution, zero location and sup and L p infinite–finite range inequalities.
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Received April 4, 2001; in final form June 21, 2002
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Damelin, S. Weighted Polynomials on Discrete Sets. Monatsh. Math. 138, 111–131 (2003). https://doi.org/10.1007/s00605-002-0517-9
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DOI: https://doi.org/10.1007/s00605-002-0517-9