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Apr
30
Abstract & title to come.
You can learn more about Professor Josh Zahl here.
Apr
30
In 1919, Besicovitch constructed a compact set in the plane with Lebesgue measure 0 that contains a unit line segment pointing in every direction. Such objects are now called measure 0 Besicovitch sets (aka Kakeya sets). By replacing a measure zero Besicovitch set by its \delta-thickening, one…
May
04
May
05
May
06
[BO, 7.1-7.11] and Theorem 1.3 of F-isocrystals and de Rham cohomology. I (Berthelot-Ogus, Inventiones).
May
06