L. Plaskota and G.W. Wasilkowski
The exact exponent of sparse grid quadratures in
the weighted case
Abstract.  
This paper provides a lowe bound on the exponent of tractability for
sparse grid quadratures for multivariate integration of functions from
a certain class of weighted tensor product spaces. This lower bound
is sharp since it matches a corresponding upper bound of Wasilkowski
and Wozniakowski (1999). It also shows that, for slowly decresing weights,
the exponent of sparse grid quadratures is far from being optimal.