【摘要】 1983年R. J. Gould和M. S. Jacobson证明了:对m≥4,T_m≠K_1,m-1,和0≤t≤[（n-2）/2]有 R（T_m,K_n-tK₂）=（m-1）（n-t-1）+1。并给出:m、n和t取何值才使得 R（K₁,m）,K_n-tK₂)=m（n-t-1）+1 成立,一些未解决的问题,本文的主要结果部分地回答了这些问题。更多还原

【Abstract】 In 1983, R. J. Gould and M. S. Jacobson showed thatR（T_m, K_n-tK₂）=（m-1）（n-t-1）+1for m≥4, n≥6, where T_m is any tree of order except the star, and for eath t, 0≤t≤ [（n-2/2）], and gave some problems which have determined all values of m, n and t such thatR(K_1.（?）, K_n-tK₂)=（m-1）（n-t-1）+1.This paper will give an answer to part of the problems.更多还原