Asymptotic behaviour of the solvability set for pendulum-type equations with linear damping and homogeneous Dirichlet conditions.
Optimal Lyapunov inequalities and applications to nonlinear problems
Positive solutions of nonlinear delay integral equations modelling epidemics and population growth.
K-Contracciones y soluciones periódicas de ecuaciones diferenciales ordinarias no lineales en resonancia.
¿El teorema de Bolzano en varias variables?
Coexistence states for nonlinear elliptic problems arising from biology.
In this work we present some of the main results obtained in [1], [2], [3], related to the existence of nonnegative and nontrivial solutions of nonlinear elliptic systems arising from population dynamics.
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