The survey of results of two different theorems in the critical point theory

In this paper, we consider some results obtained using two different theorems in two papers, separately, where authors established; based on two different local minimum theorem due to Ricceri and Bonnano et al., the main problem admits at least three solutions on exact interval of the parameter. By providing an example, we compare these results in view of values. We conclude that Bonnano’s results is better than Ricceri’s results