%0 Journal Article %A Decha Samana and Vites Longani %D 2012 %J International Journal of Mathematical and Computational Sciences %B World Academy of Science, Engineering and Technology %I Open Science Index 69, 2012 %T Lower Bounds of Some Small Ramsey Numbers %U https://publications.waset.org/pdf/6768 %V 69 %X For positive integer s and t, the Ramsey number R(s, t) is the least positive integer n such that for every graph G of order n, either G contains Ks as a subgraph or G contains Kt as a subgraph. We construct the circulant graphs and use them to obtain lower bounds of some small Ramsey numbers. %P 1369 - 1371