The relation between Piecewise Algebraic Curve and Four Color Conjecture is presented.
指出了分片线性代数曲线与四色猜想之间的内在联系。
2
A set algebraic model that can uni1 ~ the keywords-based relation query and content-based retrieval is presented.
提出了一种能够把图像关系查询和基于内容查询相统一的集合代数模型。
3
In this paper, the algebraic connectivity of trees is determined by grafting; meanwhile the relation between the algebraic connectivity and the diameter of two classes of trees is also determined.