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 …

Analysis of the Lévy Flight Foraging Hypothesis in and Unreliability of the Most Rewarding Strategies

S Dipierro, G Giacomin, E Valdinoci - SIAM Journal on Applied Mathematics, 2023 - SIAM
We analyze the searching strategies of a forager diffusing in the whole space via an
equation of fractional type. Specifically, the diffusion of the forager is regulated by a Lévy …

The fractional logarithmic Schrödinger operator: properties and functional spaces

PA Feulefack - Journal of Pseudo-Differential Operators and …, 2024 - Springer
In this note, we deal with the fractional logarithmic Schrödinger operator\((I+(-\Delta)^
s)^{\log}\) and the corresponding energy spaces for variational study. The fractional …

FEM for 1D-problems involving the logarithmic Laplacian: error estimates and numerical implementation

V Hernández-Santamaría, S Jarohs, A Saldaña… - arXiv preprint arXiv …, 2023 - arxiv.org
We present the numerical analysis of a finite element method (FEM) for one-dimensional
Dirichlet problems involving the logarithmic Laplacian (the pseudo-differential operator that …

A direct method of moving planes for logarithmic Schrödinger operator

R Zhang - Methusalem Workshop on Classical Analysis and …, 2023 - Springer
In this paper, we study the radial symmetry and monotonicity of nonnegative solutions to
nonlinear equations involving the logarithmic Schrödinger operator (ℐ− Δ) log …

Bounds for the sum of the first k-eigenvalues of Dirichlet problem with logarithmic order of Klein-Gordon operators

H Chen, L Cheng - Advances in Nonlinear Analysis, 2024 - degruyter.com
We provide bounds for the sequence of eigenvalues {λ i (Ω)} i of the Dirichlet problem (I− Δ)
ln u= λ u in Ω, u= 0 in RN\Ω, where (I− Δ) ln is the Klein-Gordon operator with Fourier …

Antisymmetric maximum principles and Hopf's lemmas for the Logarithmic Laplacian, with applications to symmetry results

L Pollastro, N Soave - arXiv preprint arXiv:2407.11718, 2024 - arxiv.org
We prove antisymmetric maximum principles and Hopf-type lemmas for linear problems
described by the Logarithmic Laplacian. As application, we prove the symmetry of solutions …

[PDF][PDF] On the threshold nature of the Dini continuity for a Glassey derivative-type nonlinearity in a critical semilinear wave equation

W Chen, A Palmieri - arXiv preprint arXiv:2306.11478, 2024 - researchgate.net
In the present manuscript, we determine the critical condition for the nonlinearity in a
semilinear wave equation with a derivative-type nonlinearity. More precisely, we consider a …

On positive solutions of critical semilinear equations involving the Logarithmic Laplacian

H Chen, F Zhou - arXiv preprint arXiv:2409.04797, 2024 - arxiv.org
In this paper, we classify the solutions of the critical semilinear problem involving the
logarithmic Laplacian $$(E)\qquad\qquad\qquad\qquad\qquad\mathcal {L} _\Delta u= ku\log …

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 …