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其中，核心<math>K(\vec r - \vec r^{,},t)</math>是作为相关物理系统的格林函数导出的传播子，<ref name="Okulov, A Yu 1988">{{cite book |chapter=Spatiotemporal dynamics of a wave packet in nonlinear medium and discrete maps

其中，核心<math>K(\vec r - \vec r^{,},t)</math>是作为相关物理系统的格林函数导出的传播子，<ref name="Okulov, A Yu 1988">{{cite book |chapter=Spatiotemporal dynamics of a wave packet in nonlinear medium and discrete maps

|title=Proceedings of the Lebedev Physics Institute |language=Russian |editor=N.G. Basov |publisher=Nauka |lccn=88174540 |volume=187  |pages=202–222 |year=1988 |last1= Okulov |first1=A Yu |last2=Oraevskiĭ |first2=A N  }}</ref> 。<math> f [\psi_{n}(\vec r,t) ] </math> 可能是逻辑映射，类似于 <math> \psi \rightarrow G \psi [1 - \tanh (\psi)]</math>或复合映射，例如Julia 集合 <math> f[\psi] = \psi^2</math>或Ikeda映射<math> \psi_{n+1} = A + B \psi_n e^{i (|\psi_n|^2 + C)} </math> 当波的传播距离 <math>L=ct</math>和波长<math>\lambda=2\pi/k</math>认为是核<math>K</math> 可以具有用于格林函数的形式薛定谔方程：<ref name="Okulov, A Yu 2000">{{cite journal |title=Spatial soliton laser: geometry and stability

|title=Proceedings of the Lebedev Physics Institute |language=Russian |editor=N.G. Basov |publisher=Nauka|volume=187  |pages=202–222 |year=1988 |last1= Okulov |first1=A Yu |last2=Oraevskiĭ |first2=A N  }}</ref> 。<math> f [\psi_{n}(\vec r,t) ] </math> 可能是逻辑映射，类似于 <math> \psi \rightarrow G \psi [1 - \tanh (\psi)]</math>或复合映射，例如Julia 集合 <math> f[\psi] = \psi^2</math>或Ikeda映射<math> \psi_{n+1} = A + B \psi_n e^{i (|\psi_n|^2 + C)} </math> 当波的传播距离 <math>L=ct</math>和波长<math>\lambda=2\pi/k</math>认为是核<math>K</math> 可以具有用于格林函数的形式薛定谔方程：<ref name="Okulov, A Yu 2000">{{cite journal |title=Spatial soliton laser: geometry and stability

|journal=Optics and Spectroscopy|volume=89 |issue=1 |pages=145–147 |year=2000 |last1= Okulov |first1=A Yu|doi=10.1134/BF03356001  |bibcode=2000OptSp..89..131O|url=https://www.semanticscholar.org/paper/0bd2d3e9a6912a188f42b50316f4652c165d1b6b}}</ref>.<ref name="Okulov, A Yu 2020">{{cite journal |title=Structured light entities, chaos and nonlocal maps

|journal=Optics and Spectroscopy|volume=89 |issue=1 |pages=145–147 |year=2000 |last1= Okulov |first1=A Yu|doi=10.1134/BF03356001  |bibcode=2000OptSp..89..131O|url=https://www.semanticscholar.org/paper/0bd2d3e9a6912a188f42b50316f4652c165d1b6b}}</ref>.<ref name="Okulov, A Yu 2020">{{cite journal |title=Structured light entities, chaos and nonlocal maps

|journal=Chaos,Solitons&Fractals|volume=133 |issue=4|page=109638 |year=2020|last1=  Okulov |first1=A Yu|doi=10.1016/j.chaos.2020.109638}}</ref>

|journal=Chaos,Solitons&Fractals|volume=133 |issue=4|page=109638 |year=2020|last1=  Okulov |first1=A Yu|doi=10.1016/j.chaos.2020.109638}}</ref>