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This research demonstrates the existence of solutions for elliptic systems with critical non-linearities, suggesting new avenues in analysis.
In this paper, we show the existence of non-trivial solutions to very general elliptic systems with critical non-linearities in the sense of embeddings in Orlicz-Sobolev spaces. This allows to consider non-linearities which do not have polynomial growth. To achieve the existence, we combine a Mountain Pass Theorem without the Palais-Smale condition with the second Concentration Compactness Principle of Lions in Orlicz-Sobolev spaces.
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Pablo Ochoa (2025) studied this question.
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