Theσ-θ-complex's graph are infinite , so the connection of infinite graph and topological space are built up in this paper, which offeres a new approach for the study of infinite graph .
σ-θ-复形的图均为无限图，由此本文建立了无限图与拓扑空间之间的联系，为无限图的研究提供了新的途径。
参考来源 - 一类拓扑空间σ·2,447,543篇论文数据，部分数据来源于NoteExpress
Line graph plays an important role in the study of spectral graph theory. By using the operator generalized line graphs on some integral graphs, a series of infinite integral graphs is constructed.
线图在图的谱理论研究中起着重要的作用。对一些整谱图，运用一种全新的广义线图算子方法，构造出了一系列无穷多个新的整谱图。
The two-dimensional layout optimization problem about placing the rectangular graph elements on a round board is investigated and the semi-infinite optimization model is presented.
研究矩形图元在圆形区域内的二维布局优化问题，建立了半无限优化模型。
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