I. Birindelli

activity

20242026

collaborators

6 papers

math.AP2026

Balance between degenerate elliptic operators and coercive Hamiltonians

Isabeau Birindelli, Giulio Galise, Hitoshi Ishii

For $p > 1$ , we consider the boundary value problem for fully nonlinear degenerate elliptic equations $- I^»_{i} (D^{2} u) + ∣ D u ∣^{p} + I^^{3} u = f (x)$ in bounded domains with Dirichlet or boundary blow…

math.AP2026

Fully nonlinear elliptic PDEs in thin domains with oblique-Dirichlet mixed boundary conditions

Isabeau Birindelli, Ariela Briani, Hitoshi Ishii

We consider asymptotic behavior of solutions to the oblique-Dirichlet mixed boundary conditions without the strict monotonicity of the equation in the variable corresponding to the…

math.AP2026

Fully nonlinear logistic equations with sanctuary

Isabeau Birindelli, Giulio Galise, Fabiana Leoni

For the fully nonlinear stationary logistic equation $F (x, D^{2} u) + I^¼ u = k (x) u^{p}$ with $p > 1$ and $k (x) \geq 0$ , in a bounded domain with Dirichlet boundary condition, we deter…

math.AP2025

Radial solutions of truncated Laplacian equations in punctured balls

Isabeau Birindelli, FranÃ§oise Demengel, Fabiana Leoni

We consider equations involving the truncated laplacians and having lower order terms with singular potentials posed in punctured balls. We study both the principal eigenvalue prob…

math.AP2025

Liouville results for semilinear integral equations with conical diffusion

Isabeau Birindelli, Lele Du, Giulio Galise

Nonexistence results for positive supersolutions of the equation $- Lu = u^{p} in R_{+}^{N}$ are obtained, $- L$ being any symmetric and stable linear operator, positi…

math.AP2024

Fully nonlinear elliptic PDEs in thin domains with oblique boundary condition

Isabeau Birindelli, Ariela Briani, Hitoshi Ishii

In this preprint we consider fully nonlinear equations in thin domains with oblique boundary condition, finding some new phenomena, in particular the limit equation contains "new t…