On arithmetic characterization of local systems of geometric origin
报告人：Alexander Petrov (Harvard University)
时间：2022-03-30 10:00-11:30
地点：Zoom
Abstract: I will talk about the problem of classifying local systems of geometric origin on algebraic varieties over complex numbers.
Conjecture: For a smooth algebraic variety S over a finitely generated field F, a semi-simple Q_l-local system on S_{\bar{F}} is of geometric origin if and only if it extends to a local system on S_{F'} for a finite extension F' \supset F.
My main goal will be to provide motivation for this conjecture arising from the Fontaine-Mazur conjecture, and survey known results and related problems.
Zoom Information
Link: https://us02web.zoom.us/j/82749153248?pwd=eE9ITTlCMVBCbXNIblVoaVVIS2F5dz09
ID: 827-4915-3248
PW: 623413
