Variable coefficient Lp local smoothing

Thu Nov 7, 2024 4:00 p.m.—5:00 p.m.
Exterior of Sheffield-Sterling-Strathcona Hall featuring a stone carving of Yale's coat of arms and motto

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Seminar: 
Analysis

Event time: 
Thursday, November 7, 2024 - 4:00pm

Location: 
Zoom

Speaker: 
Jonathan Hickman

Event description: 

I will discuss some recent work concerning variable coefficient extensions of Lp local smoothing estimates for the Schrodinger propagator. This can be thought of as a counterpart to a classical oscillatory integral operator bound of Bourgain (1991). Whilst Bourgain’s result relies on studying Kakeya sets of curves, our Lp local smoothing result relies on studying Nikodym sets of curves. An important observation of Wisewell (2005) is that the Nikodym theory is surprisingly different from the Kakeya theory. Our work aims to further investigate and exploit these differences. 
The Zoom link

Research Area(s): 
Analysis & PDE