1. Mass and Extremals Associated with the Hardy–Schrödinger Operator on Hyperbolic Space
- Author
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Chan Hardy, Ghoussoub Nassif, Mazumdar Saikat, Shakerian Shaya, and de Oliveira Faria Luiz Fernando
- Subjects
hardy–sobolev inequalities ,poincaré ball ,hyperbolic mass ,hardy–schrödinger operator ,35j20 ,35j75 ,53c25 ,Mathematics ,QA1-939 - Abstract
We consider the Hardy–Schrödinger operator Lγ:=-Δ𝔹n-γV2{L_{\gamma}:=-\Delta_{\mathbb{B}^{n}}-\gamma{V_{2}}} on the Poincaré ball model of the hyperbolic space 𝔹n{\mathbb{B}^{n}} (n≥3{n\geq 3}). Here V2{V_{2}} is a radially symmetric potential, which behaves like the Hardy potential around its singularity at 0, i.e., V2(r)∼1r2{V_{2}(r)\sim\frac{1}{r^{2}}}. As in the Euclidean setting, Lγ{L_{\gamma}} is positive definite whenever γn-2n-4(n(n-4)4-γ){\lambda>\frac{n-2}{n-4}(\frac{n(n-4)}{4}-\gamma)}. On the other hand, in dimensions 3 and 4, the existence of solutions depends on whether the domain has a positive “hyperbolic mass” a notion that we introduce and analyze therein.
- Published
- 2018
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