2007
DOI: 10.3934/dcds.2007.18.637
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Nonexistence of locally self-similar blow-up for the 3D incompressible Navier-Stokes equations

Abstract: Abstract. We study locally self-similar solutions of the three dimensional incompressible Navier-Stokes equations. The locally self-similar solutions we consider here are different from the global self-similar solutions. The self-similar scaling is only valid in an inner core region that shrinks to a point dynamically as the time, t, approaches a possible singularity time, T . The solution outside the inner core region is assumed to be regular, but it does not satisfy selfsimilar scaling. Under the assumption … Show more

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Cited by 24 publications
(8 citation statements)
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“…then U is a steady solution to the Leray equations and hence U 0 º by [26]. This is the argument developed in [2,16]. Note that weak solutions to the steady Leray equations are known to be actually smooth [26].…”
Section: Beyond the First Singularitymentioning
confidence: 74%
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“…then U is a steady solution to the Leray equations and hence U 0 º by [26]. This is the argument developed in [2,16]. Note that weak solutions to the steady Leray equations are known to be actually smooth [26].…”
Section: Beyond the First Singularitymentioning
confidence: 74%
“…As we mentioned above, self-similar blowup [26,39] and asymptotically self-similar blowup [2,16] have been excluded for the first singularity. See also [3,4] for related works.…”
Section: Beyond the First Singularitymentioning
confidence: 99%
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“…Assuming that a solution to the Navier-Stokes equations blows up at t = t * , we apply the dynamic scaling transformations e.g. [4,14,20,22]…”
Section: Navier-stokes and Leray Equationsmentioning
confidence: 99%
“…The above comparison is based on the presence or absence of one multiplicative factor G a . It is a 'good' factor in that it restores smoothness which is otherwise broken at t = 1/2a; if G a is neglected in (14), the solution becomes short-lived. On the other hand, if we insert G a , which is valid as a martingale in t < √ 2/a, into (13), we obtain (22) below.…”
Section: Leray Equationsmentioning
confidence: 99%