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标题：Bipartite Toughness and <svg style="vertical-align:-0.198pt;width:12.275px;" id="M1" height="15.35" version="1.1" viewBox="0 0 12.275 15.35" width="12.275" xmlns="http://www.w3.org/2000/svg"> <g transform="matrix(1.25,0,0,-1.25,0,15.35)"> <g transform="translate(72,-59.72)"> <text transform="matrix(1,0,0,-1,-71.95,59.97)"> <tspan style="font-size: 17.93px; " x="0" y="0">𝑘</tspan> </text> </g> </g> </svg>-Factors in Bipartite Graphs
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作者：Guizhen Liu ; Jianbo Qian ; Jonathan Z. Sun 等
期刊名称：International Journal of Mathematics and Mathematical Sciences
印刷版ISSN：0161-1712
电子版ISSN：1687-0425
出版年度：2008
卷号：2008
DOI：10.1155/2008/597408
出版社：Hindawi Publishing Corporation
摘要：We define a new invariant 𝑡𝐵(𝐺) in bipartite graphs that is analogous to the toughness 𝑡(𝐺) and we give sufficient conditions in term of 𝑡𝐵(𝐺) for the existence of 𝑘-factors in bipartite graphs. We also show that these results are sharp.