Conjecture on infinite-dimensional random attractors under infinite energy mean

From papers

Let pp, aa, bb and qq satisfy

ln(eaq+e2(p+2)p+4b(1q))>0>aq+2(p+2)p+4b(1q),\ln\left(e^{-a}q+e^{\frac{2(p+2)}{p+4}b}(1-q)\right)>0>-aq+\frac{2(p+2)}{p+4}b(1-q),

and let ff be a nonlinearity and gg a right-hand side satisfying the assumptions of Theorem 5. Let

\mathcal A($\eta) be the associated random attractor in the energy space $E$. **Infinite-dimensional attractor conjecture.** There are a nonlinearity $f$ and \right-hand side $g$ satisfying those assumptions such that

mathcal A(η)hasinfiniteHausdorffandfractaldimensionsin\eta) has infinite Hausdorff and fractal dimensions in E$.

The parameter condition makes the constructed energy bound have infinite mean. The conjecture proposes that this lack of a first energy moment can lead to attractors with infinite Hausdorff and fractal dimensions; the source gives no resolution.

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Sources & referencesView supporting material

Primary source

Qingquan Chang, Dandan Li, Chunyou Sun and Sergey Zelik, “Deterministic and random attractors for a wave equation with sign changing damping”, arXiv:1910.02430 (2019).

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