On orthogonal polynomials for certain nonde nite linear functionals

نویسنده

  • Sven Ehrich
چکیده

We consider the non-de nite linear functionals Ln[f] = ∫ R w(x)f (x) dx and prove the nonexistence of orthogonal polynomials, with all zeros real, in several cases. The proofs are based on the connection with moment preserving spline approximation. c © 1998 Elsevier Science B.V. All rights reserved.

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تاریخ انتشار 1998