A desingularization of Kontsevich's compactification of twisted cubics in $V_5$

Kiryong Chung

By definition, the del Pezzo $3$-fold $V_5$ is the intersection of $\mathrm{Gr}(2,5)$ with three hyperplanes in ${\mathbb{P}}^9$ under the Plücker embedding. Rational curves in $V_5$…