| 单词 | graph theory |
| 释义 | > as lemmasgraph theory graph theory n. the mathematical theory of the properties and applications of graphs (sense 1). ΘΚΠ the world > relative properties > number > graph or diagram > [noun] > theory of graph theory1953 1953 Harary & Norman Graph Theory as Math. Model in Social Sci. p. iv It soon became apparent that a whole cluster of substantive problems in psychology and sociology may be treated fruitfully by a branch of mathematics known as ‘graph theory’. 1964 Sci. Amer. Apr. 126/2 Today graph theory is a flourishing field. It is usually considered a branch of topology (because in most cases only the topological properties of graphs are considered). 1977 B. Andrásfai Introd. Graph Theory v. 113 The degree of each vertex of G is k1 + k2 +..km and, similarly, the degree of the product of some polynomials is also equal to the sum of the degrees of the factors. This similarity illustrates a strong connection between algebra and graph theory. < as lemmas |
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