2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/70884The positive Dehn twist expressions for the generalizations of the new involutions described in math.GT/0404310 are presented. The homeomorphism types of the Lefschetz fibrations that they define are determined for several examples.28 pages, 28 figuresGeometric TopologySymplectic Geometry57M07; 57R17; 20F38text