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On the third gap for proper holomorphic maps between balls

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Let \(F\) be a proper rational map from the complex ball \(\mathbb B ^n\) into \(\mathbb B ^N\) with \(n>7\) and \(3n+1 \le N\le 4n-7\). Then \(F\) is equivalent to a map \((G, 0, \dots , 0)\) where \(G\) is a proper holomorphic map from \(\mathbb B ^n\) into \(\mathbb B ^{3n}\).

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Acknowledgments

The major part of the paper was completed when the first two authors were visiting the School of Mathematics and Statistics, Wuhan University, in the summer of 2009. These two authors would like to express their gratitude to this institute for the hospitality during this visit.

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Correspondence to Xiaojun Huang.

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Xiaojun Huang is Supported in part by DMS-1101481.

Wanke Yin is Supported in part by FANEDD-201117, ANR-09-BLAN-0422, RFDP-20090141120010, NSFC-10901123 and NSFC-11271291.

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Huang, X., Ji, S. & Yin, W. On the third gap for proper holomorphic maps between balls. Math. Ann. 358, 115–142 (2014). https://doi.org/10.1007/s00208-013-0952-z

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