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\begin{document}

\abstract{
We propose a Cram\'er-von Mises test for testing the symmetry around 0 of
the distribution of the noise in parametric
heteroscedastic models. We study the
convergence of the residual-based empirical distribution function, and
we establish a functional limit theorem for an
empirical process of residuals. The asymptotic properties of the test
are then studied under the null and general alternatives.}

\end{document}





