Keller-Osserman estimates for some quasilinear elliptic systems

Abstract : In this article we study quasilinear multipower systems of two equations of two types, in a domain $\Omega$ of R^{N} : with absorption terms, or mixed terms. Despite of the lack of comparison principle, we prove a priori estimates of Keller-Osserman type. Concerning the mixed system , we show that one of the solutions always satisfies Harnack inequality. In the case $\Omega$=B(0,1)\{0}, we also study the behaviour near 0 of the solutions of more general weighted systems, giving a priori estimates and removability results. Finally we prove the sharpness of the results.
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https://hal.archives-ouvertes.fr/hal-00565280
Contributor : Marie-Françoise Bidaut-Véron <>
Submitted on : Monday, August 26, 2013 - 8:29:21 AM
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Marie-Françoise Bidaut-Véron, Marta Garcia-Huidobro, Cecilia Yarur. Keller-Osserman estimates for some quasilinear elliptic systems. Communications in Pure and Applied Analysis, 2013, 12 (4), pp.1547-1568. ⟨10.3934/cpaa.2012.12⟩. ⟨hal-00565280v2⟩

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