Polymath15, ninth thread: going below 0.22?
4 May 2018 | 10:22 pm

This is the ninth “research” thread of the Polymath15 project to upper bound the de Bruijn-Newman constant , continuing this post. Discussion of the project of a non-research nature can continue for now in the existing proposal thread. Progress will be summarised at this Polymath wiki page. We have now tentatively improved the upper bound […]

246C notes 3: Univalent functions, the Loewner equation, and the Bieberbach conjecture
2 May 2018 | 10:18 pm

We now approach conformal maps from yet another perspective. Given an open subset of the complex numbers , define a univalent function on to be a holomorphic function that is also injective. We will primarily be studying this concept in the case when is the unit disk . Clearly, a univalent function on the unit […]

Polymath15, eighth thread: going below 0.28
17 April 2018 | 11:47 pm

This is the eighth “research” thread of the Polymath15 project to upper bound the de Bruijn-Newman constant , continuing this post. Discussion of the project of a non-research nature can continue for now in the existing proposal thread. Progress will be summarised at this Polymath wiki page. Significant progress has been made since the last […]


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