Pascal Fong

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math.AG2026

Generalizations of Igusa surfaces

Pascal Fong, Matilde Maccan, Ludvig Modin

We give a criterion for the contracted product $E \times^{G} X$ to have a singular Picard scheme, where $E$ is an elliptic curve, $G \subset E$ is a finite subgroup scheme, and $X$ i…

math.AG2024

Isotrivial elliptic surfaces in positive characteristic

Pascal Fong, Matilde Maccan

We study relatively minimal surfaces equipped with a strongly isotrivial elliptic fibration in positive characteristic by means of the notion of equivariantly normal curves introdu…