2025/03/01 by Dhanya, R., Giacomoni, Jacques, Jana, Ritabrata · 2 citations
#35J20 #35J25 #35J60 #35J92 #35R11 #Analysis of PDEs (math.AP) #FOS: Mathematics
paper · doi:10.48550/arxiv.2503.00365
In this article we examine the multiplicity of non-negative solutions to mixed local-nonlocal equations involving \((-Δp) + (-Δsq)\) in a bounded smooth domain. The nonlinearity incorporates a parameter \(λ> 0\), a sublinear term, and a superlinear term, with sign-changing weight functions \(a(x)\) and \(b(x)\). Under suitable conditions, we establish the existence of at least two distinct nontrivial non-negative solutions in both the subcritical and critical regimes via fibering map analysis and constrained minimization on the Nehari manifold. Additionally, for \(p \not = q\), we obtain a nonexistence result for large \(λ\) by analyzing the associated generalized eigenvalue problem.