Normal conformal metrics on R4 with Q-curvature having power-like growth
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Date
2021-11-15
Publication Type
Journal Article
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Abstract
Answering a question by M. Struwe [26] related to the blow-up behavior in the Nirenberg problem, we show that the prescribed Q-curvature equation Δ2u=(1−|x|p)e4u in R4,Λ:=∫R4(1−|x|p)e4udx<∞ has normal solutions (namely solutions which can be written in integral form, and hence satisfy Δu(x)=O(|x|−2) as |x|→∞) if and only if p∈(0,4) and [Formula presented] We also prove existence and non-existence results for the positive curvature case, namely for Δ2u=(1+|x|p)e4u in R4, and discuss some open questions.
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published
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Volume
301
Pages / Article No.
37 - 72
Publisher
Elsevier