进化稳定策略依赖于它们的环境，以及其他任何处于同一环境下的ESS。

Evolutionary stable strategies depend on their environment, and on any other ESS-es in that same environment.

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最后研究了严格平衡集在保号选择动力学下的进化稳定性以及它与策略稳定的关系。

Lastly the evolutionary stable of the strict equilibrium set is studied in SPS dynamics. we get some relation about the strict equilibrium set and strategy stable.

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