activity
20092025
most citedExact Morse index computation for nodal radial solutions of Lane-Emden problems

25 citations · 82 across the 22 of their papers we have counts for

collaborators

26 papers

math.AP2025

Morse index, topological degree and local uniqueness of multi-spikes solutions to the Lane-Emden problem in dimension two

Isabella Ianni, Peng Luo, Shusen Yan

We consider multi-spike positive solutions to the Lane-Emden problem in any bounded smooth planar domain and compute their Morse index, extending to the dimension classical t…

math.AP2024

Sharp boundary concentration for a two-dimensional nonlinear Neumann problem

Francesca De Marchis, Habib Fourti, Isabella Ianni

We consider the elliptic equation in a bounded, smooth domain subject to the nonlinear Neumann boundary condition $\partial u/\partialν= |u|^{p-1…

math.AP2024

New solutions for the Lane-Emden problem on planar domains

Luca Battaglia, Isabella Ianni, Angela Pistoia

We consider the Lane-Emden problem on planar domains. When the exponent is large, the existence and multiplicity of solutions strongly depend on the geometric properties of the dom…

math.AP2022

Uniqueness and nondegeneracy for Dirichlet fractional problems in bounded domains via asymptotic methods

Abdelrazek Dieb, Isabella Ianni, Alberto Saldaña

We consider positive solutions of a fractional Lane-Emden type problem in a bounded domain with Dirichlet conditions. We show that uniqueness and nondegeneracy hold for the asympto…

math.AP2021

Morse index computation for radial solutions of the {Hé}non problem in the disk

Annalisa Amadori, Francesca De Marchis, Isabella Ianni

We compute the Morse index of any radial solution of the semilinear problem: \begin{equation} \label{problemaAbstract}\tag{P} \left\{ \begin{array}{lr}…

math.AP2021★ 1 cited

Non-degeneracy and local uniqueness of positive solutions to the Lane-Emden problem in dimension two

Massimo Grossi, Isabella Ianni, Peng Luo +1

We are concerned with the Lane-Emden problem \begin{equation*} \begin{cases} -Δu=u^{p} &{\text{in}~Ω},\\[0.5mm] u>0 &{\text{in}~Ω},\\[0.5mm] u=0 &{\text{on}~\partial Ω}, \end{cases…