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ZJU-Westlake Joint Seminar on AAG

2026-09-01 09:10:11

时间:2026年9月15日(周二)15:00-16:00

地点:浙大紫金港校区海纳苑2幢206室


报告人:上海数学与交叉学科研究院 张鼎新

报告主题:Cohomological Divisibility of Exponential Sums

报告摘要:Using the theory of the sheaf-theoretic Mellin transform of Gabber–Loeser, we prove that the Adolphson–Sperber p-adic bound for exponential sums holds for every individual ℓ-adic Frobenius eigenvalue attached to an exponential sum over F_q, uniformly for all ℓ not dividing q.