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arXiv 1807.01931math.AT
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非自旋4-流形上$SU(n)$ -规范群的同伦类型

Homotopy types of $SU(n)$-gauge groups over non-spin 4-manifolds

Tseleung So

摘要:

设$M$是可定向的、单连通的、闭的、非自旋的4-流形,$\mathcal{G}_k(M)$是具有第二陈类$k\in\mathbb{Z}$的$M$上主$G$ -丛的规范群.已知$\mathcal{G}_k(M)$的同伦类型由$\mathcal{G}_k(\mathbb{CP}^2)$的同伦类型决定。本文研究了当$G = SU(n)$对规范群的同伦型进行部分分类时$\mathcal{G}_k(\mathbb{CP}^2)$的性质。

英文摘要:

Let $M$ be an orientable, simply-connected, closed, non-spin 4-manifold and let $\mathcal{G}_k(M)$ be the gauge group of the principal $G$-bundle over $M$ with second Chern class $k\in\mathbb{Z}$. It is known that the homotopy type of $\mathcal{G}_k(M)$ is determined by the homotopy type of $\mathcal{G}_k(\mathbb{CP}^2)$. In this paper we investigate properties of $\mathcal{G}_k(\mathbb{CP}^2)$ when $G = SU(n)$ that partly classify the homotopy types of the gauge groups.

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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