Frequent oscillatory criteria for partial difference equations with several delays
A class of unforced partial difference equations with several discrete delays is considered. Solutions are classified according to whether or not they tend to a sign-definite steady state value. Eventually sign-indefinite solutions are labeled as oscillatory. Sufficient conditions are presented for the existence of oscillatory solutions of this class of equations.
partial difference equations with several discrete delays
scientific article; zbMATH DE number 2142463