On the existence of hermitian‐yang‐mills connections in stable vector bundles
On the existence of hermitian‐yang‐mills connections in stable vector bundles
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DOI:
10.1002/cpa.3160390714
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发表时间:
1986
影响因子:
3
通讯作者:
Karen K. Uhlenbeck;S. Yau
中科院分区:
文献类型:
--
作者:
Karen K. Uhlenbeck;S. Yau
The Yang-Mills equations were introduced by theoretical physicists and are now accepted as a basic ingredient in particle theory. In the past decade these equations have become important in mathematics in two separate areas. It was observed early on that the twistor formalism of Penrose and the Atiyah-Singer index theory can be employed to good purpose in order to describe special solutions, called anti-selfdual solutions; see [29],[3]. Using techniques of algebraic geometry, Atiyah-Drinfeld-Hitchin-Manin [2] were able to describe all such solutions over S4 (or W4) in terms of holomorphic bundles on CP3. More recently a simpler description using stable vector bundles was obtained by Donaldson [81. The techniques of partial differential equations were used by Taubes [25],[26] to construct solutions on arbitrary four-manifolds. These results and compactness theorems of the first author were incorporated into a general theory of Simon Donaldson to obtain beautiful and spectacular results on the differential structures on four-manifolds; see [lo]-[ll]. It is an observation dating essentially back to Yang’s formalism of using C instead of R that the Taubes solutions give rise to holomorphic vector bundles over Kiihler surfaces; see [30]. The theory of holomorphic vector bundles is central to algebraic geometry. The concept of a stable vector bundle was introduced by Mumford in hs study of moduli for bundles [18]. This theme has been pursued by several mathematicians, notably Takemoto, Horrocks, Gieseker, Maruyama and Barth. An important contribution was made by Bogomolov [4], who showed that, for a projective variety M with Pic (M)= Z and E a stable bundle on M, the inequality k-1 (c2-Tc:) u 2 0 is valid. Here k= rank E, c, and c2 are the first and second Chern classes, and w is a polarization for which E is stable.Bogomolov’s work inspired the work of Miyaoka [17] on the inequality 3c, 2 c: for algebraic surfaces of general type. Independently, the second author also gave a proof of this inequality at the same time. While the methods of Miyaoka and Bogomolov are essentially based on algebraic geometry, the method of the second author used the techniques of partial differential equations to