{ "id": "2006.11475", "version": "v1", "published": "2020-06-20T02:21:07.000Z", "updated": "2020-06-20T02:21:07.000Z", "title": "Zeros of a binomial combination of Chebyshev polynomials", "authors": [ "Summer Al Hamdani", "Khang Tran" ], "categories": [ "math.CA", "math.CV" ], "abstract": "For $0<\\alpha<1$, we study the zeros of the sequence of polynomials $\\left\\{ P_{m}(z)\\right\\} _{m=0}^{\\infty}$ generated by the reciprocal of $(1-t)^{\\alpha}(1-2zt+t^{2})$, expanded as a power series in $t$. Equivalently, this sequence is obtained from a linear combination of Chebyshev polynomials whose coefficients have a binomial form. We show that the number of zeros of $P_{m}(z)$ outside the interval $(-1,1)$ is bounded by a constant independent of $m$.", "revisions": [ { "version": "v1", "updated": "2020-06-20T02:21:07.000Z" } ], "analyses": { "subjects": [ "30C15", "26C10", "11C08" ], "keywords": [ "chebyshev polynomials", "binomial combination", "power series", "constant independent", "linear combination" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }