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  • 學位論文

建構有優美標號或α標號的圖

On the construction of graphs with graceful labeling and α-labeling

指導教授 : 蔡錫鈞

摘要


另G為一個簡單圖(simple graph),G上的端點標號(vertex labeling)所指的是一個vertex的函數f對應到一些數值,而G上的每一個edge (u,v) 被指定個由f(x)和f(y)所決定的數值。如果這個fV(G)→{0,1,...,m}為單射,所指定edge (u,v) 的數值為|f(x)–f(y)|,並且所有的edge都被指定不同的數值,則f被稱做是優美標號。如果還另外存在一個邊界數值(boundary value) k,使每一個edge(u,v) 都能滿足f(u)≤k

並列摘要


Let G be a simple graph with m edges and let f:V(G) → {0,1, ...,m} be an injection. The vertex labeling is called a graceful labeling if every edge (u,v) is assigned an edge label |f(x)–f(y)|and the resulting edge labels are mutually distinct. A graph possessing a graceful labeling is called a graceful graph. With an additional property that there exists an boundary value k so that for each edge (u,v) either f(u)≤k

參考文獻


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