Seminar: Yitang Zhang (University of California, Santa Barbara): "Non-positive sequences in analytic number theory and the Landau-Siegel zero"

Speaker:  Yitang Zhang (University of California, Santa Barbara)
Title:  Non-positive sequences in analytic number theory and the Landau-Siegel zero
Abstract:  A number of problems in analytic number theory can be reduced to showing that some related sequences are non-positive. In this direction a typical treatment is based on the idea of the Ʌ²-sieve due to Selberg. We introduce a new approach that may find application to the Landau-Siegel zero problem.