Log-Lipschitz Mané projector conjecture for dissipative PDE attractors

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Let HH be the phase space, let H2H^2 denote the more regular space, let FF be the non-linearity satisfying the reasonable assumptions considered in the paper, and let A\mathcal A be the attractor. A Mané projector is a linear map P∈L(H,H)P\in\mathcal L(H,H) whose restriction to A\mathcal A is injective, with inverse defined on A‾\overline{\mathcal A}. Log-Lipschitz Mané projector conjecture. The attractor A\mathcal A possesses at least one Mané projector P∈L(H,H)P\in\mathcal L(H,H) such that P−1:A‾→A⊂H2P^{-1}:\overline{\mathcal A}\to\mathcal A\subset H^2 satisfies, for some positive constants CC and KK,

∥P−1v1−P−1v2∥H2≤C∥v1−v2∥H(log⁡2K∥v1−v2∥H)α,v1,v2∈A,\|P^{-1}v_1-P^{-1}v_2\|_{H^2}\le C\|v_1-v_2\|_H\left(\log\frac{2K}{\|v_1-v_2\|_H}\right)^\alpha,\qquad v_1,v_2\in\mathcal A,

with exponent α≤1\alpha\le 1. The question arises from the existence of bi-Lipschitz Mané projections under stronger estimates and the weaker log-Lipschitz estimate established earlier in the paper. The conjecture is refuted: the paper states that it was shown in the cited work [EKZ] to be wrong, with a corresponding counterexample discussed in the following section.

References

Primary source

Sergey Zelik, “Inertial manifolds and finite-dimensional reduction for dissipative PDEs”, arXiv:1303.4457 (2013).

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