Bifurcations of one kind of reaction-diffusion equations, u" + mu ( u - u(k
)) = 0(mu is a parameter, 4 less than or equal to k epsilon Z(+)), with bou
ndary value condition u(0) = u(rr) = 0 are discussed. By means of singulari
ty theory based on the method of Liapunov-Schmidt reduction, satisfactory r
esults can be acquired.