Değişken katsayılı kısmi fark denklemler için çarpım tipli salınım testleri

In this thesis, we will review some of the most well known the results in the oscillation theory of ordinary difference equations and partial difference equations. Later, we present new oscillation tests for the partial difference equations. Our main result improves some of the well-known results in the literature. We also provide a numerical example where not all previous results in the literature give an answer.