THE BIFURCATION DIAGRAM OF AN ELLIPTIC P-KIRCHHOFF-TYPE PROBLEM WITH RESPECT TO THE STIFFNESS OF THE MATERIAL

Document Type : Research Paper

Authors

1 Mazandaran university

2 Department of Mathematics, Faculty of Mathematical Sciences, University of Mazandaran, Babolsar, Iran

3 Babol University of Technology

10.22075/ijnaa.2021.25226.2960

Abstract

We study a superlinear and subcritical p-Kirchhoff-type problem which is variational and depends upon a real parameter λ. The nonlocal term forces some of the fiber maps

associated with the energy functional to have two critical points. This suggests multiplicity

of solutions, and indeed, we show the existence of a local minimum and a mountain pass-type

solution. We characterize the first parameter λ∗ 0 for which the local minimum has nonnegative energy when λ ≥ λ∗ 0. Moreover, we characterize the extremal parameter λ∗ for which if

λ > λ∗; then, the only solution to the p-Kirchhoff problem is the zero function. In fact, λ∗

can be characterized in terms of the best constant of Sobolev embeddings. We also study the

asymptotic behavior of the solutions when λ ↓ 0

Keywords