Cheng–Huang–Li integral decay conjecture for the Lane–Emden system

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Let (u,v)(u,v) solve the Lane–Emden system in Rn\mathbb{R}^n with p≥qp\geq q, and let β\beta denote the exponent used in the source's integral estimate. Cheng–Huang–Li conjecture. There exists s>0s>0 such that n−sβ<1n-s\beta<1 and

∫BRvs≤CRn−sβ.\int_{B_R}v^s\leq C R^{n-s\beta}.

The source states that this conjecture is equivalent to the Lane–Emden conjecture. Since the full Lane–Emden nonexistence problem remains open in higher dimensions, this integral estimate remains open in general.

References

Primary source

Ze Cheng, Genggeng Huang and Congming Li, “On the Hardy-Littlewood-Sobolev type systems”, arXiv:1509.06822 (2015).

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