A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2007; you can also visit the original URL.
The file type is `application/pdf`

.

##
###
Rational interpolation of the exponential function

1995
*
Canadian Journal of Mathematics - Journal Canadien de Mathematiques
*

Let m, n be nonnegative integers and a<m+n) be a set of m + n + 1 real in~lation points (not necessarily distinct). Let Rm.n = P m.n / Qm.n be the unique rational function with degPm.n ::; m, deg Qm,n :$n, that in~lates e'" in the points of a<nr+n). Ifm = mv, n = nv with mv + nv --+ 00, and mv /nv --+ A as v --+ 00, and the sets a<nr+n) are uniformly bounded, we show that Pm.n(z) --+ ~/(l+)'), Qm.n(z) --+ e-z/(l+).) locally uniformly in the complex plane C, where the normalization Qm,n(O) = 1

doi:10.4153/cjm-1995-058-6
fatcat:7earckn4b5a47owr3droh5jtci