3 papers
math.AP2026
Fully Nonlinear Logistic Equations with Sanctuary Regions and Nonlocal Diffusion
Giulio Galise, Shuhei Kitano
We study positive solutions of in a bounded domain, where , the nonnegative coefficient may vanish on a sanctuary region, and is a fully nonlinear nonl…
math.AP2026
On the Aleksandrov--Bakelman--Pucci estimates for the weighted -Laplacian
Shuhei Kitano
We establish Aleksandrov--Bakelman--Pucci-type estimates for viscosity subsolutions of Poisson equations associated with the weighted -Laplacian and, more generally, with fully…
math.AP2023
Second order estimates for subsolutions of fully nonlinear equations
Hongjie Dong, Shuhei Kitano
We obtain new estimates for subsolutions to fully nonlinear equations. Based on our estimates, we further study several topics such as the third and fourth order deriva…