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arXiv 2104.09070physics.soc-phcond-mat.stat-mech
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异质传染过程中的双跃迁和滞后现象

Double transitions and hysteresis in heterogeneous contagion processes

Joongjae Kook, Jeehye Choi, Byungjoon Min

摘要:

在许多现实世界的传染现象中,接触传播实体以供收养的数量因个人而异。因此,我们研究了具有异质采纳阈值的传染动力学模型。我们推导出平均场方程的分数采用节点,并获得相图的传输概率和分数的节点需要多个接触采用。我们发现,由于采用阈值的异质性,采用节点的比例存在双重相变,表现出连续的转变和随后的不连续跳跃。此外,我们观察到的滞后曲线,在所采用的节点的分数,由于在网络中的密集连接的核心采用的节点。

英文摘要:

In many real-world contagion phenomena, the number of contacts to spreading entities for adoption varies for different individuals. Therefore, we study a model of contagion dynamics with heterogeneous adoption thresholds. We derive mean-field equations for the fraction of adopted nodes and obtain phase diagrams in terms of the transmission probability and fraction of nodes requiring multiple contacts for adoption. We find a double phase transition exhibiting a continuous transition and a subsequent discontinuous jump in the fraction of adopted nodes because of the heterogeneity in adoption thresholds. Additionally, we observe hysteresis curves in the fraction of adopted nodes owing to adopted nodes in the densely connected core in a network.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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