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University of Cambridge > Talks.cam > Partial Differential Equations seminar > Vortex filament solutions of the 3D Navier-Stokes solutions

## Vortex filament solutions of the 3D Navier-Stokes solutionsAdd to your list(s) Download to your calendar using vCal - Jacob Bedrossian (University of Maryland)
- Monday 14 February 2022, 14:00-15:00
- CMS, MR13.
If you have a question about this talk, please contact Daniel Boutros. We consider solutions of the Navier-Stokes equations in 3d with vortex filament initial data of arbitrary circulation, that is, initial vorticity given by a divergence-free, vector-valued measure of arbitrary mass supported on a smooth curve. First, we prove global well-posedness for perturbations of the Oseen vortex column in scaling-critical spaces at all circulation numbers. Second, we prove local well-posedness (in a sense to be made precise) when the filament is a smooth, closed, non-self-intersecting curve (again at all circulation numbers). Besides their physical interest, these results are the first to give well-posedness in a neighborhood of large self-similar solutions of 3d Navier-Stokes, as well as solutions which are locally approximately self-similar. In particular, in velocity form, the initial condition is large in This talk is part of the Partial Differential Equations seminar series. ## This talk is included in these lists:- All CMS events
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