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arXiv 2202.07903math.DSnlin.CD
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分数阶耦合映象格子的不动点稳定性分析

Stability analysis of fixed point of fractional-order coupled map lattices

Sachin Bhalekar, Prashant M. Gade

摘要:

研究了线性分数阶耦合映象格子(CML)同步不动点态的稳定性。我们观察到,连接矩阵的特征值确定的稳定性为整数阶CML。这些特征值在某些情况下可以精确地确定。利用循环矩阵的理论,我们在一维晶格中找到了耦合不变的精确界。这可以扩展到任何有限的维度。对于非线性耦合分数阶映射的同步不动点,也可以进行类似的分析,其中雅可比矩阵的特征值起同样的作用。该分析具有一般性,并表明即使在耦合分式映射中,连通矩阵的特征值在同步不动点的稳定性分析中也起着至关重要的作用。

英文摘要:

We study the stability of synchronized fixed-point state for linear fractional-order coupled map lattice(CML). We observe that the eigenvalues of the connectivity matrix determine the stability as for integer-order CML. These eigenvalues can be determined exactly in certain cases. We find exact bounds in one-dimensional lattice with translationally invariant coupling using the theory of circulant matrices. This can be extended to any finite dimension. Similar analysis can be carried out for the synchronized fixed point of nonlinear coupled fractional maps where eigenvalues of the Jacobian matrix play the same role. The analysis is generic and demonstrates that the eigenvalues of connectivity matrix play a pivotal role in stability analysis of synchronized fixed point even in coupled fractional maps.

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