Oscillation of solutions of first order linear advanced difference equations

This thesis consists of four chapters. The first chapter is devoted to the introduction section and provide a generel knowledge of literature. In the second chapter, we mention some basic notions and studies so far. Third chapter is devoted to our original results. In the third chapter, new oscillatory conditions are obtained for first order linear advanced difference equation given by ∇x(n)-∑_(i=1)^m▒〖p_i (n)x(τ_i (n))〗=0 and the special form of above equation for m=1 ∇x(n)=x(n)-x(n-1) where {p_i (n)} are sequences of positive real numbers and {τ_i (n)} are sequences of integers and are not necessarily monotone for 1≤i≤m such that n≥1 for τ_i (n)≥n and backward difference operator is given by ∇x(n)=x(n)-x(n-1). Finally, the discussion and conclusion part is given.