Abstract: This paper proposes an Agent based model of circles network for constructing spatial distribution network of populations within their own social networks to investigate the problem of language competition under spatial distributions of populations with different languages and flow patterns between language regions. This model makes consideration of the influence on language competition of the heterogeneity residential structure including mixed habitation in a region with different language, mixed habitation in different region with a different language and separation habitation in individual area with a language. This model also makes considerations of the influence on language competitions of the social network dynamics causing by the three population flows patterns including daily short moving within a residential region, returning movement and not returning movement of population across regions, and the language prestige variability that the different language on network has different prestige, but a language in a different region may have different prestige. This model has been used to analyze the dynamics of language competition under spatial distribution of populations, social reaches, flows patterns of populations and the language prestige variability. It finds whether the coexistence of languages maintains is the result of interactions of these above factors.

摘要： 针对不同语言人口空间分布形态以及人口流动的多样性问题，提出了利用Agent社会圈子理论来构建具有社会空间分布形态的语言竞争传播网络，包括语言在同一空间的混合杂居、分片杂居和相对独立聚居三种空间网络结构，同时考虑反映网络动态性的三种人员流动，即区域内短途日常流动、区域间返回流动和不返回流动。另外，网络中不同语言的语言地位不同，同一语言在不同类型区域的语言地位也可以不同。模型重点分析了不同空间分布、社会交往半径、人员流动性和语言地位的变化对语言竞争传播的影响，最后结合语言竞争传播中的影响因子分析了全部因素在促进语言共存的可能性。

关键词: Agent, 社会圈子, 空间动态网络, 语言竞争