... Additivity criterion of a finite metric space and minimal fillings . ... A co-projection of computable measures matched with an order relation is not always computable . ... Two-sided estimates of essential height in the Shirshov height theorem . ... Uniform estimate of extremal index of stochastic recurrent sequences . ... Estimates of polynomials of some g -adic numbers . ... Smoothing digital filters with finite memory based on a polynomial approximation of data . ...