Brian Lehmann

activity

20232026

most citedOn the asymptotic enumerativity property for Fano manifolds

1 citations · 1 across the 9 of their papers we have counts for

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Showing 2024Show all

3 papers · 1 filter

math.AG2024

Codimension of jumping loci

Brian Lehmann, Eric Riedl, Sho Tanimoto

Suppose that $E$ is a vector bundle on a smooth projective variety $X$ . Given a family of curves $C$ on $X$ , we study how the Harder-Narasimhan filtration of $\mathcal{E}…

math.AG2024

Campana rational connectedness and weak approximation

Qile Chen, Brian Lehmann, Sho Tanimoto

Campana introduced a notion of Campana rational connectedness for Campana orbifolds. Given a Campana fibration over a complex curve, we prove that a version of weak approximation f…

math.AG2024

Approximating rational points on surfaces

Brian Lehmann, David McKinnon, Matthew Satriano

Let $X$ be a smooth projective algebraic variety over a number field $k$ and $P$ in $X (k)$ . In 2007, the second author conjectured that, in a precise sense, if rational points on $…