Multiple Normalized Solutions for p-Laplacian Schrödinger–Poisson Systems

In this article, we investigate the existence and multiplicity of normalized solutions for the p -Laplacian Schrödinger–Poisson system: { − Δ p u + λ u p − 1 − κ ( | x | − 1 * | u | p ) u p − 1 = f ( u ) in R 3 , ∫ R 3 | u | p d x = a p , u > 0 in R 3 , where a > 0 represents the prescribed L p -norm, κ ∈ R ∖ { 0 } is a parameter, and λ ∈ R appears as an undetermined Lagran