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math.AG2025
On Modified Diagonal Cycles and the Beauville Decomposition of the Ceresa Cycle
Lucas Lagarde, Mohamed Moakher, Morena Porzio +3
Let be a curve of genus , and let be its Jacobian. The choice of a degree 1 divisor on gives an embedding of into ; we denote by $[C]_{}^{e}\in \ma…
math.AG2025
Ceresa Cycles of
Elvira Lupoian, James Rawson
The Ceresa cycle is an algebraic 1-cycle on the Jacobian of an algebraic curve. Although it is homologically trivial, Ceresa famously proved that for a very general complex curve o…