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Huitao Feng & Enli Guo |
Abstract |
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In this paper we prove some Novikov-type inequalities for vector fields with non-isolated zero points, which generalize some results of Shubin, 1996. As a consequence, we obtain an analytic proof of Hopf index theorem for vector fields which are nondegenerate in the sense of Bott. |
Authors |
| Huitao Feng |
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Nankai Institute of Mathematics Nankai University Tianjin 300071 People's Republic of China |
| Enli Guo |
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The College of Applied Mathematics and Physics Beijing Polytechnic University Beijing, 100000 People's Republic of China |
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Berkeley, California.