2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/172378We consider $\ell$-Volterra quadratic stochastic operators defined on $(m-1)$-dimensional simplex, where $\ell\in\{0,1,...,m\}$. Under some conditions on coefficients of such operators we describe Lyapunov functions and apply them to obtain upper estimates for the set of $ω$- limit points of trajectories. We describe a set of fixed points of $\ell$-Volterra operators.11 pagesDynamical SystemsFunctional Analysis60C20text