Interlacing property for B-splines

نویسنده

  • Simon Foucart
چکیده

We prove that the zeros of the derivatives of any order of a B-spline are increasing functions of its interior knots. We then prove that if the interior knots of two Bsplines interlace, then the zeros of their derivatives of any order also interlace. The same results are obtained for Chebyshevian B-splines.

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عنوان ژورنال:
  • Journal of Approximation Theory

دوره 135  شماره 

صفحات  -

تاریخ انتشار 2005