A generalised beta integral and the limit of the Bernstein--Durrmeyer operator with Jacobi weights

Shayne Waldron


We give a generalisation of the multivariate beta integral.
This is used to show that the (multivariate) Bernstein--Durrmeyer
operator for a Jacobi weight has a limit as the weight becomes singular.
The limit is an operator previously studied by Goodman and Sharma.
From the elementary proof given, it follows that this operator inherits
many properties of the Bernstein--Durrmeyer operator in a natural way.
In particular, we determine its eigenstructure and give a differentiation
formula for it.


Math Review Classification
Primary 33B15, 41A10, ; Secondary 15A18, 33C45, 41A36

Last Updated
19 February 2003

10 Pages

No online versions are available, but there should be a hardcopy version available from the department.