Motivation: Sufficiently smooth solutions conserve energy
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Motivation: Hydrodynamic turbulence
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Onsager and Ideal Turbulence
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Motivation: Onsager's Conjecture (1949)
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K41 implies compactness
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K41 Folklore Conjecture for Navier-Stokes
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Zero viscosity limits dissipate energy locally
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K41 Folklore Conjecture in the inviscid limit
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Open Problem: Strong Onsager conjecture
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Theorem: First result on the Strong Onsager Conjecture
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Theorem: Improvement on the Strong Onsager Conjecture
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Outline
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Continuous Solutions: The Euler-Reynolds Equations
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Continuous Solutions: Convex Integration for Euler
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The High-Frequency Correction
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Micralocal Lemma
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The Main Error Terms
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Dissipative Euler Reynolds flow
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Plan of attack
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The new terms: The Transport term
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Getting rid of the unresolved flux density
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Conflict: Eliminate the Unresolved Flux Current and Stress
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Dangerous terms: algebraic cancellation saving the day
Description:
Explore a comprehensive analysis seminar on the construction of continuous solutions to incompressible Euler equations exhibiting local energy dissipation. Delve into the motivations behind this research, including weak solutions, energy conservation in smooth solutions, and hydrodynamic turbulence. Examine Onsager's Conjecture and its implications for ideal turbulence, as well as the K41 Folklore Conjecture for Navier-Stokes equations. Investigate the open problem of the Strong Onsager conjecture and recent theorems addressing it. Learn about the Euler-Reynolds equations, convex integration techniques, and the challenges in eliminating unresolved flux currents and stress. Gain insights into the speaker's approach to constructing solutions with local energy dissipation while maintaining the highest possible regularity.
Local Dissipation of Energy for Continuous Incompressible Euler Flows - Phillip Isett