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arXiv 2008.11255math.AG
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代数曲面上合丛H-稳定性的几点注记

Some Remarks on H-stability of syzygy bundle on algebraic surface

H. Torres-López, A. G. Zamora

摘要:

设$L$是光滑不可约复射影曲面$X$上的整体生成线丛。合冲束$M_{L}$是求值映射$H^0(L)\otimes\mathcal O_X\to L$的核心。证明了$M_L$对Hirzebruch曲面、del Pezzo曲面和Enriques曲面的$L$ -稳定性.同时得到了del Pezzo曲面上合丛$M_L$的$(-K_X)$ -稳定性.

英文摘要:

Let $L$ be a globally generated line bundle over a smooth irreducible complex projective surface $X$. The syzygy bundle $M_{L}$ is the kernel of the evaluation map $H^0(L)\otimes\mathcal O_X\to L$. We prove the $L$-stability of $M_L$ for Hirzebruch surfaces, del Pezzo surfaces and Enriques surfaces. The $(-K_X)$-stability of syzygy bundles $M_L$ over del Pezzo surfaces is also obtained.

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