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arXiv · 1109.1550

The Yang-Mills flow and the Atiyah-Bott formula on compact Kahler manifolds

Adam Jacob
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Abstract

We study the Yang-Mills flow on a holomorphic vector bundle E over a compact Kahler manifold X . Along a solution of the flow, we show the curvature $i\Lambda F(A_t)$ approaches in $L^2$ an endomorphism with constant eigenvalues given by the slopes of the quotients from the Harder-Narasimhan filtration of E. This proves a sharp lower bound for the Hermitian-Yang-Mills functional and thus the Yang-Mills functional, generalizing to arbitrary dimension a formula of Atiyah and Bott first proven on Riemann surfaces. Furthermore, we show any reflexive extension to all of X of the limiting bundle $E_\infty$ is isomorphic to $Gr(E)^{\star\star}$, verifying a conjecture of Bando and Siu.

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Adam Jacob. 2011-09-07. The Yang-Mills flow and the Atiyah-Bott formula on compact Kahler manifolds. https://arxiv.org/abs/1109.1550

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