convergence 3 збіжність 3 сходимость 3 functional sequence 2 функциональная последовательность 2 функціональна послідовність 2 M-equivalence 1 Petri net 1 UDC 512.546 1 approximation 1 discrepancy 1 error 1 estimation 1 free topological group 1 fuzzy complex number 1 fuzzy number 1 ill-posed equation 1 iteration method 1 level set 1 limit reachability 1 next-state function 1 operator 1 projection-iteration method 1 reachability graph 1 real-valued function 1 sequence 1 sequence of the continuous mappings 1 sequence of transition firings 1 space 1 strong anticipation 1