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| Autor principal: | |
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| Formato: | Preprint |
| Publicado: |
2024
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| Materias: | |
| Acceso en línea: | https://arxiv.org/abs/2402.08066 |
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- For a partition $a$ and a vector bundle $E$ on a projective variety $X$ let $\mathcal{F}l_s(E)$ be the corresponding flag manifold. There is a line bundle $\it Q_a^s$ on $\mathcal{F}l_s(E)$ with $p:\mathcal{F}l_s(E)\to X $ and $\it p_*Q_a^s = \mathcal{S}_aE$. We prove, if $\mathcal{S}_aE $ is $k$-ample (in the sense of Sommese) then $\it Q_a^s$ is $k$-ample. For the inverse if $\it Q_a^s$ is $k$-ample, we prove that one of two the conditions of k-ampleness namely the cohomological vanishing is proved here but not yet the condition of semiamplenes of $\mathcal{S}_aE $ .