Uniqueness and nondegeneracy of least-energy solutions to fractional Dirichlet problems

A Dieb, I Ianni, A Saldana - arXiv preprint arXiv:2310.01214, 2023 - arxiv.org
We prove the uniqueness and nondegeneracy of least energy solutions of a fractional
Dirichlet semilinear problem in any ball and in more general sufficiently large symmetric …

Uniqueness of least energy solutions of the fractional Lane-Emden equation in the ball

A DelaTorre, E Parini - arXiv preprint arXiv:2310.02228, 2023 - arxiv.org
We prove uniqueness of least-energy solutions for a class of semilinear equations driven by
the fractional laplacian, under homogeneous Dirichlet exterior conditions, when the …

[HTML][HTML] Small order limit of fractional Dirichlet sublinear-type problems

F Angeles, A Saldana - Fractional Calculus and Applied Analysis, 2023 - Springer
We study the asymptotic behavior of solutions to various Dirichlet sublinear-type problems
involving the fractional Laplacian when the fractional parameter s tends to zero. Depending …

Concavity and perturbed concavity for -Laplace equations

M Gallo, M Squassina - arXiv preprint arXiv:2405.05404, 2024 - arxiv.org
In this paper we study convexity properties for quasilinear Lane-Emden-Fowler equations of
the type $$\begin {cases}-\Delta_p u= a (x) u^ q &\quad\hbox {in $\Omega $},\\u> 0 …

Payne nodal set conjecture for the fractional -Laplacian in Steiner symmetric domains

V Bobkov, S Kolonitskii - arXiv preprint arXiv:2405.06936, 2024 - arxiv.org
Let $ u $ be either a second eigenfunction of the fractional $ p $-Laplacian or a least energy
nodal solution of the equation $(-\Delta)^ s_p\, u= f (u) $ with superhomogeneous and …

A non-local scalar field problem: existence, multiplicity and asymptotic behavior

AA Batahri, A Attar, A Dieb - Complex Variables and Elliptic …, 2024 - Taylor & Francis
The main purpose of this work is to study a non-local scalar field equation in bounded
domains. More precisely we consider the semi-linear fractional elliptic problem:(− Δ) su= λ …

Second radial eigenfunctions to a fractional Dirichlet problem and uniqueness for a semilinear equation

MM Fall, T Weth - arXiv preprint arXiv:2405.02120, 2024 - arxiv.org
We analyze the shape of radial second Dirichlet eigenfunctions of fractional Schr\" odinger
type operators of the form $(-\Delta)^ s+ V $ in the unit ball $ B $ in $\mathbb {R}^ N $ with a …

Optimal boundary regularity and a Hopf-type lemma for Dirichlet problems involving the logarithmic Laplacian

V Hernández-Santamaría, LFL Ríos… - arXiv preprint arXiv …, 2024 - arxiv.org
We study the optimal boundary regularity of solutions to Dirichlet problems involving the
logarithmic Laplacian. Our proofs are based on the construction of suitable barriers via the …

[PDF][PDF] NONDEGENERACY PROPERTIES AND UNIQUENESS OF POSITIVE SOLUTIONS TO A CLASS OF FRACTIONAL SEMILINEAR EQUATIONS

MM FALL, T WETH - arXiv preprint arXiv:2310.10577, 2023 - researchgate.net
We prove that positive solutions u∈ Hs (RN) to the equation (−∆) su+ u= up in RN are
nonradially nondegenerate, for all s∈(0, 1), N≥ 1 and p> 1 strictly smaller than the critical …

Uniqueness of positive solutions for m-Laplacian equations with polynomial non-linearity

W Ke - arXiv preprint arXiv:2312.15007, 2023 - arxiv.org
We consider the uniqueness of the following positive solutions of $ m $-Laplacian
equation:\begin {equation}\left\{\begin {aligned}-\Delta _m u&=\lambda u^{m-1}+ u^{p …