A solution to an open problem on lower against number in graphs |
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| Authors: | Babak Samadi |
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| Institution: | 1.Department of Mathematics,Arak University,Arak,Islamic Republic of Iran |
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| Abstract: | In Wang (Appl Anal Discret Math 4:207–218, 2010) the problem of finding a sharp lower bound on lower against number of a general graph is mentioned as an open question. We solve the problem by establishing a tight lower bound on lower against number of a general graph in terms of order and maximum degree. |
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