Gianni Arioli, Hans Koch Integration of dissipative PDEs: a case study (31349K, TeX) ABSTRACT. We develop a computer-assisted technique to construct and analyze orbits of dissipative evolution equations. As a case study, the methods are applied to the Kuramoto-Sivashinski equation. We prove the existence of a hyperbolic periodic orbit. The computer programs used for the proof are available in the file ks-ada.tgz