Entire Solutions of Two Certain Types of Non-linear Differential-Difference Equations

In this paper, we describe entire solutions for two certain types of non-linear differential-difference equations of the form f(n)(z) + omega f(n-1) (z) f' (z) + q(z)e(Q(z)) f (z + c) = u(z)e(v(z)), and f(n)(z) + omega f(n-1) (z) f' (z) + q(z)e(Q(z)) f (z + c) = p(1)e(lambda z) + p(2)e(-lambda z), where q, Q, u, v are non-constant polynomials, c, lambda, p(1), p(2) are non-zero constants, and. is a constant. Our results improve and generalize some previous results.