标题： 由稀疏高阶相互作用促进的社会极化 显示英文标题

标题： Social polarization promoted by sparse higher-order interactions

摘要： 许多社会互动是基于群体的，但它们在社会极化中的作用仍大多未被探索。 为了填补这一空白，我们引入了一个高阶框架，该框架考虑了群体互动和相似性。 我们发现，在稀疏系统中，群体互动可以通过限制代理接触不同观点的机会来显著增强极化。 相反，在完全连接的社会中，它们可以抑制极化，这种效应随着群体规模的增加而增强。 我们的结果表明，极化不仅取决于相似性的强度，还取决于群体互动的结构和微观排列。 显示英文摘要

摘要： Many social interactions are group-based, yet their role in social polarization remains largely unexplored. To bridge this gap here we introduce a higher-order framework that takes into account both group interactions and homophily. We find that group interactions can strongly enhance polarization in sparse systems by limiting agents' exposure to dissenting views. Conversely, they can suppress polarization in fully connected societies, an effect that intensifies as the group size increases. Our results highlight that polarization depends not only on the homophily strength but also on the structure and microscopic arrangement of group interactions.