  In this paper, we establish blow-up results for the semilinear wave equation
in generalized Einstein-de Sitter spacetime with nonlinearity of derivative
type. Our approach is based on the integral representation formula for the
solution to the corresponding linear problem in the one-dimensional case, that
we will determine through Yagdjian's Integral Transform approach. As upper
bound for the exponent of the nonlinear term, we discover a Glassey-type
exponent which depends both on the space dimension and on the Lorentzian metric
in the generalized Einstein-de Sitter spacetime.
