AbstractWe use the machinery of A1-homotopy theory to study the geometric ramification theory. We define the quadratic Artin conductor for a motivic spectrum on a smooth proper curve and obtain a quadratic refinement of the classical Grothendieck-Ogg-Shafarevich formula. Then we use the non-acyclicity class to formulate a quadratic conductor formula. In some sense, we obtain a quadratic version...
Speaker IntroSergio Cecotti graduated in physics at the University of Pisa in 1979 and has worked at the Harvard University, the University of Pisa, CERN, etc.. In 2014, he became a full professor at SISSA. He has published about 100 papers with total number of citations 7260. His h-index is 44.Member Seminar IntroThe BIMSA member seminar is a weekly event during which researchers engage in dis...