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Chapter
Structure of the Book
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Philip Isett
Published: 21 February 2017
... continuous weak solutions—continuous in space and time—to the incompressible Euler equations that fail to conserve energy. Part IV shows how to iterate the construction of Part III to obtain continuous solutions to the Euler equations. It then discusses the concept of frequency energy levels, along...
Chapter
A Main Lemma for Continuous Solutions
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Philip Isett
Published: 21 February 2017
...This chapter introduces the Main Lemma that implies the existence of continuous solutions. According to this lemma, there exist constants K and C such that the following holds: Let ϵ > 0, and suppose that (v , p , R ...
Chapter
Gluing Solutions
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Philip Isett
Published: 21 February 2017
...This chapter deals with the gluing of solutions and the relevant theorem (Theorem 12.1), which states the condition for a Hölder continuous solution to exist. By taking a Galilean transformation if necessary, the solution can be assumed to have zero total momentum. The cut off velocity and pressure...
Chapter
Constructing Continuous Solutions
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Philip Isett
Published: 21 February 2017
...This chapter demonstrates how the preceding construction, combined with a few estimates from Part V, can be used to prove the Main Lemma for continuous solutions. The first step is to mollify the velocity, followed by mollification of the stress. The lifespan is then chosen, preferring a small...
Chapter
The Divergence Equation
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Philip Isett
Published: 21 February 2017
...This chapter introduces the divergence equation. A key ingredient in the proof of the Main Lemma for continuous solutions is to find special solutions to this divergence equation, which includes a smooth function and a smooth vector field on ³, plus an unknown, symmetric (2, 0) tensor. The chapter...