Normalized Solutions for the Choquard Equation With Potential: Concentration and Multiplicity

This article focuses on the study of multiplicity and concentration behavior of normalized solutions for a Choquard equation with a local perturbation { − Δ p u + V ( ϵ x ) | u | p − 2 u = λ | u | p − 2 u + ( I α * | u | q ) | u | q − 2 u + μ | u | s − 2 u in R N , ∫ R N | u | p d x = a p > 0 , where a , ϵ > 0 , 2 ≤ p < N , ( p (