Math @ Duke
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Publications [#381670] of Tarek M Elgindi
Papers Published
- Elgindi, TM; Liss, K, Norm Growth, Non-uniqueness, and Anomalous Dissipation in Passive Scalars,
Archive for Rational Mechanics and Analysis, vol. 248 no. 6
(December, 2024) [doi]
(last updated on 2025/02/22)
Abstract: We construct a divergence-free velocity field u:[0,T]×T2→R2 satisfying (Formula presented.) such that the corresponding drift-diffusion equation exhibits anomalous dissipation for all smooth initial data. We also show that, given any α0<1, the flow can be modified such that it is uniformly bounded only in Cα0(T2) and the regularity of solutions satisfy sharp (time-integrated) bounds predicted by the Obukhov–Corrsin theory. The proof is based on a general principle implying H1 growth for all solutions to the transport equation, which may be of independent interest.
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