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littlelittlelittle
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Examples of Einstein four-manifolds of negative sectional curvature
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Examples of Einstein four-manifolds of negative sectional curvature
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Examples of Einstein four-manifolds of negative sectional curvature
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 Commentator
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Solvability of quasilinear elliptic equations on closed manifolds
Yes, I think it is necessary and sufficient. You can check Barta's Lemma in this paper (Lemma 3.1): arxiv.org/abs/1211.2705
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Solvability of quasilinear elliptic equations on closed manifolds
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Solvability of quasilinear elliptic equations on closed manifolds
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What is the difference between $\delta W^{\pm}=0$ and Einstein?
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What is the difference between $\delta W^{\pm}=0$ and Einstein?
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A question on existence of solutions of a linear ODE system
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A question on existence of solutions of a linear ODE system
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A question on existence of solutions of a linear ODE system
OD inequalities...sorry.
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A question on existence of solutions of a linear ODE system
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A question on existence of solutions of a linear ODE system
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A question on existence of solutions of a linear ODE system
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A question on Schrodinger operator
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Question about extending a solution to Monge-Ampere solution
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A question on Schrodinger operator
$u=1$ requires either $\phi>0$ or $\psi>0$.