2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/39323To establish the Higgs mechanism {\it sui generis} experimentally, the Higgs self-interaction potential must be reconstructed. This task requires the measurement of the trilinear and quadrilinear self-couplings, as predicted in the Standard Model or in supersymmetric theories. The couplings can be probed in multiple Higgs production at high-luminosity e+e- linear colliders. We present the theoretical analysis for the production of neutral Higgs-boson pairs in the relevant channels of double Higgs-strahlung and associated multiple Higgs production.20 pages, Proceedings, "Physics with a High-Luminosity e+e- Linear Collider", DESY/ECFA LC Workshop, DESY 99-123FHigh Energy Physics - Phenomenologytext