Erjuan Fu

activity

20202026

most citedA necessary and sufficient condition for the Darboux-Treibich-Verdier potential with its spectrum contained in

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math.AG2022

Tube classes over elementary vanishing cycles

Erjuan Fu

Let $X$ be a closed Riemann surface. When $X$ is embedded into a projective space, the first rational cohomology group can be concretely obtained from the monodromy in the family o…

math.AG2022

A new approach towards Lefschetz $(1, 1)$ -Theorem

Erjuan Fu

Let $S$ be a complex projective surface. Lefschetz originally proved Lefschetz $(1, 1)$ --Theorem by studying a Lefschetz pencil of hyperplane sections of $S$ and the Abel--Jacobi m…

Tube classes over elementary vanishing cycles

A new approach towards Lefschetz (1,1)-Theorem

A new approach towards Lefschetz $(1, 1)$ -Theorem