It is proposed a new topological method of adjacent matrix of esters which was constructed by taking the characteristic value of the pieces of ester compounds as principal diagonalelement.
提出了拓扑方法，即考虑分子图顶点的性质，直接用酯类化合物的分子碎片的特征值为主元来构建邻接矩阵。
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This element is receded, in relation to the volume of the terrace, so the spatial emphasis is on the main diagonal visuals previously mentioned (south-southeast).
A special matrix structure was adopted, that is, each row and each column has one matrix element, and the matrix elements are on the main diagonal symmetry.