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arXiv 1503.08733math.AGmath.CV
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关于Jacobian猜想的一些探讨

Some approaches toward the Jacobian conjecture

Tuyen Trung Truong

摘要:

在本文中,我们研究了所谓的条件C1和一个较弱的条件C2。对于Druzkowski映射,条件C2等价于Jacobian猜想。主要结果:-陈述新的等价公式的雅可比猜想。- 对雅可比猜想进行了推广,并给出了理论和实验证据。- 证明条件C1对任何给定秩的类属矩阵成立,是某个群作用的不变量,条件C2是三次相似矩阵的不变量。- 给出了一个启发性的论证来证明雅可比猜想的正确性。- 给出了一个检验Druzkowski映射是否满足Jacobian猜想的有效(省时)方法,从理论上进行了解释,并对许多例子进行了检验,包括其他作者以前考虑过的例子。- 提出解决雅可比猜想的方法。证明了一般的Druzkowski映射满足这些方法中的一些方法的准则(见定理1.12),因此期望能够非常快速地检查给定Druzkowski映射的这些方法。- 作为应用,提出了一种利用三次相似性检验维数为$\leq 9$的Druzkowski映射满足Jacobian猜想的策略。

英文摘要:

In this paper, we study a so-called Condition C1 and a weaker Condition C2. For Druzkowski maps Condition C2 is equivalent to the Jacobian conjecture. Main results obtained: - Stating new equivalent formulations of the Jacobian conjecture. - Formulating some generalisations of the Jacobian conjecture and giving both theoretical and experimental evidences to support them. - Showing Condition C1 holds for a generic matrix of any given rank, is an invariant for a certain group action, and Condition C2 is an invariant for cubic similarity matrices. - Giving one heuristic argument for the truth of the Jacobian Conjecture. - Giving an effective (time saving) method to check whether a given Druzkowski map satisfies the Jacobian conjecture, explaining theoretically and checking on many examples including those previously considered by other authors. - Proposing approaches toward resolving the Jacobian conjecture. Showing that a generic Druzkowski map satisfies the criteria of some of these approaches (see Theorem 1.12), and hence expecting to be able to check these approaches for a given Druzkowski map very quickly. -As an application, proposing a strategy to use cubic similarity to check that Druzkowski maps of dimension $\leq 9$ satisfy the Jacobian conjecture.

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