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2021-02-18から1日間の記事一覧

Horizontal character and bump function

Quantitative Leibman theorem states that if a polynomial sequence $g\colon [N]\to G $ fails to be δ-equidistributed, then there is a horizontal character $\psi \colon G/\Gamma \to \mathbb R/\mathbb Z $ of size $\ll \delta ^{-O(1)} $ such t…