2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/41923The investigation of W-pair production offers unique precision tests of the electroweak theory at future e+e- colliders, including precise determinations of cross sections, the W-boson mass, and gauge-boson self-couplings. The state-of-the-art and future requirements in the theoretical prediction for the reaction e+e- -> WW -> 4f(+gamma) are briefly reviewed.9 pages, latex, 5 postscript files, to appear in the proceedings of the "International Workshop on Linear Colliders", August 26-30, 2002, Jeju Island, KoreaHigh Energy Physics - PhenomenologyChallenges in W-pair productiontext