  J. R. Wilton obtained an expression for the product of two Riemann zeta
functions. This expression played a crucial role to find the approximate
functional equation for the product of two Riemann zeta functions in the
critical region. We find analogous expressions for the product of two Dedekind
zeta functions and then use these expressions to find some expressions for
Dedekind zeta values attached to arbitrary real as well as quadratic number
fields at any positive integer.
