“…as models of multi-tempo processes when simulating the dynamics of aircraft, chemical reactions, movements of robotic manipulators, etc. (see reviews [9][10][11][12][13] and references there). For SPS, depending on the information about the small parameter and the needs of the applications, different formulations of observation problems can be considered: with a known value of the small parameter µ [14], for a 374 TSEKHAN known closed interval of values of the small parameter µ ∈ [µ, µ] ⊂ (0, µ 0 ] [15], for an unknown value of the small parameter µ [16].…”