Existence and non-existence results for fully nonlinear elliptic systems
Résumé
We study systems of two elliptic equations, with right-hand sides with general power-like superlinear growth, and left-hand sides which are of Isaac's or Hamilton-Jacobi-Bellman type (however many of our results are new even for linear left-hand sides). We show that under appropriate growth conditions such systems have positive solutions and that all such solutions are bounded in the uniform norm.
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