activity
20242026
collaborators

5 papers

math.AP2026

Delaunay solutions to the fractional Hartree equation with critical growth

João Henrique Andrade, Tao Feng, Paolo Piccione +1

We study positive solutions of the critical fractional Hartree equation with a non-removable isolated singularity at the origin. This equation is doubly nonlocal, involving both th…

math.AP2026

Survey on topological methods for Allen--Cahn equations and systems

João Henrique Andrade, Stefano Nardulli, Raoní Ponciano

We present a survey on multiplicity results for the Allen--Cahn equation and systems in the singular perturbation regime, emphasizing their geometric interpretation through -co…

math.DG2025

Nonhomothetic complete periodic metrics with constant scalar curvature

João H. Andrade, Jeffrey S. Case, Paolo Piccione +1

We show that there are infinitely many pairwise nonhomothetic, complete, periodic metrics with constant scalar curvature that are conformal to the round metric on $S^n\setminus S^k…

math.AP2025

Local asymptotics for singular solutions to critical Hartree equations

João Henrique Andrade, Tao Feng, Paolo Piccione +1

We investigate the qualitative properties of a critical Hartree equation defined on punctured domains. Our study has two main objectives: analyzing the asymptotic behavior near iso…

math.AP2024

From bubbles to clusters: Multiple solutions to the Allen--Cahn system

João Henrique de Andrade, Dario Corona, Stefano Nardulli +2

We extend previous works on the multiplicity of solutions to the Allen-Cahn system on closed Riemannian manifolds by considering an arbitrary number of phases. Specifically, we sho…