We study positive solutions to nonlinear elliptic systems of the form: -Du=lfv inW -Dv=lgu inW u=0=von6W where u is the Laplacian of u, lambda is a positive parameter and O is a bounded domain in RN with smooth boundary ∂O. In particular, we will analyze the combined effects of the nonlinearities on the existence and multiplicity of positive solutions. We also study systems with multiparameters and stronger coupling. We extend our results to p-q-Laplacian systems and to n x n systems. We mainly use sub- and super-solutions to prove our results.
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机译:我们研究以下形式的非线性椭圆系统的正解:-Du = lfv inW -Dv = lgu inW u = 0 = von6W,其中u是u的拉普拉斯算子,lambda是正参数,O是RN中光滑的有界域边界∂O。特别是,我们将分析非线性对正解的存在性和多重性的综合影响。我们还将研究具有多参数和更强耦合的系统。我们将结果扩展到p-q-Laplacian系统和n x n系统。我们主要使用子解决方案和超级解决方案来证明我们的结果。
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