On Modified Diagonal Cycles and the Beauville Decomposition of the Ceresa Cycle

Lucas Lagarde, Mohamed Moakher, Morena Porzio +2

Let $C$ be a curve of genus $g\ge 2$, and let $J$ be its Jacobian. The choice of a degree 1 divisor $e$ on $C$ gives an embedding of $C$ into $J$; we denote by $[C]_{}^{e}\in \ma…