2018/03/02 by B.T. Polyak, Polyak, B. T., Pavel Shcherbakov +3 · 1 citation
Mathematics · Medicine · #Differential Equations and Numerical Methods #FOS: Electrical engineering #Mathematical and Theoretical Epidemiology and Ecology Models #Nonlinear Differential Equations Analysis #Systems and Control (eess.SY) #electronic engineering #information engineering
paper · pdf · doi:10.48550/arxiv.1803.00808
openalex publication_date 2018/03/02 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We consider asymptotically stable scalar difference equations with unit-norm initial conditions. First, it is shown that the solution may happen to deviate far away from the equilibrium point at finite time instants prior to converging to zero. Second, for a number of root distributions and initial conditions, exact values of deviations or lower bounds are provided. Several specific difference equations known from the literature are also analyzed and estimates of deviations are proposed. Third, we consider difference equations with non-random noise (i.e., bounded-noise autoregression) and provide upper bounds on the solutions. Possible generalizations, e.g., to the vector case are discussed and directions for future research are outlined.