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arXiv 2109.09100math.DG
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六维解流形族的几乎复不变量

Almost-complex invariants of families of six-dimensional solvmanifolds

Nicoletta Tardini, Adriano Tomassini

摘要:

我们计算了几乎复不变量$h^{p,0}_{\overline\partial}$、$h^{p,0}_{\text{Dol}}$和几乎埃尔米特不变量$h^{p,0}_{\barδ}$在几乎Kähler和几乎埃尔米特$6$维解流形上的分布.最后,作为几乎Kähler恒等式的结果,我们提供了一个障碍,存在一个辛结构上的一个给定的紧殆复流形。请注意,当$(X,J,g,ω)$是实维数大于4的紧致几乎厄米流形时,关于数字$h^{p,q}_{\overline\partial}$的知识并不多。

英文摘要:

We compute almost-complex invariants $h^{p,0}_{\overline\partial}$, $h^{p,0}_{\text{Dol}}$ and almost-Hermitian invariants $h^{p,0}_{\barδ}$ on families of almost-Kähler and almost-Hermitian $6$-dimensional solvmanifolds. Finally, as a consequence of almost-Kähler identities we provide an obstruction to the existence of a symplectic structure on a given compact almost-complex manifold. Notice that, when $(X,J,g,ω)$ is a compact almost Hermitian manifold of real dimension greater than four, not much is known concerning the numbers $h^{p,q}_{\overline\partial}$.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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