2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/211465We study the reduction of the (bosonic) string sigma model on $AdS_4\times\cp$ background. We give a brief presentation of the reduction procedure for $AdS$ part and apply explicitly the reduction scheme to $\cp$ part of the model. A brief discussion and directions for further study are presented.19 pages, references added, some typos correctedHigh Energy Physics - Theorytext