Modified Oscillation Results for Advanced Difference Equations of Second-Order by G. E. Chatzarakis, N. Indrajith, S. L. Panetsos, E. Thandapani

“…In this paper, we present a new method to establish the oscillation of advanced second-order difference equations of the form ΔηℓΔυℓ+ρℓυσℓ=0, using the ordinary difference equation ΔηℓΔυℓ+qℓυℓ+1=0. The obtained results are new and improve the existing criteria. …”
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A Shortest-Path Lyapunov Approach for Forward Decision Processes by Julio B. Clempner

“…We consider dynamical systems governed by ordinary difference equations described by Petri nets. The trajectory over the net is calculated forward using a discrete Lyapunov-like function, considered as a distance function. …”
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