H. Quoirin

activity

20142026

most citedUniqueness and sign properties of minimizers in a quasilinear indefinite problem

3 citations · 11 across the 13 of their papers we have counts for

collaborators

Showing 2017Show all

2 papers · 1 filter

math.AP2017

An indefinite concave-convex equation under a Neumann boundary condition II

Humberto Ramos Quoirin, Kenichiro Umezu

We proceed with the investigation of the problem $(P_{λ}) :$ $-Δu = λb(x)|u|^{q-2}u +a(x)|u|^{p-2}u \ \mbox{ in } Ω, \ \ \frac{\partial u}{\partial \mathbf{n}} = 0 \ \mbox{ on } \par…

math.AP2017★ 1 cited

Positive solutions of indefinite semipositone problems via sub-super solutions

Uriel Kaufmann, Humberto Ramos Quoirin

Let $Ω \subset R^{N}$ , $N \geq 1$ , be a smooth bounded domain, and let $m : Ω \to R$ be a possibly sign-changing function. We investigate the existence of positiv…