Yitang (Tom) Zhang, a Chinese-American mathematician who recently revealed that he had solved the Landau-Siegel zeros conjecture, delivered an online speech at Peking University on November 8 to answer external questions on his newly published 111-page paper.
On November 7, Zhang’s new paper, “Discrete Mean Estimates and the Landau-Siegel Zero,” was officially launched on arXiv, an open-access repository of electronic preprints and postprints.
During the speech, Zhang used a whiteboard and a black marker to show the relevant proof formulas by hand and explain the innovations. He gave the speech in Chinese and didn’t use PowerPoint.
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