2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/123972We consider the Knizhnik-Zamolodchikov system of linear differential equations. The coefficients of this system are generated by elements of the symmetric group $S_n$. We separately investigate the case $S_4$. In this case we solve the corresponding KZ-equation in the explicit form.Classical Analysis and ODEs34M05; 34M55; 47B38text