Minimax Results with Respect to Different Altitudes in the Situation of Linking
Minimax Results with Respect to Different Altitudes in the Situation of Linking
Consider a continuous function on a metric space. In the presence of linking between a compact pair and a closed set, depending on the different behaviors of the function on the linking sets, we establish minimax results guaranteeing existence of Palais-Smale sequences or providing gradient estimates. Our approach relies on …