Sultanakhmedov Murad Salikhovich Russia Daghestan Scientific Centre of the Russian Academy of Sciences, Russia, 367025, Makhachkala, M. Gadjieva st., 45 sultanakhmedov@gmail.com Author's articles Asymptotic properties and weighted estimation of polynomials, orthogonal on the nonuniform grids with Jacobi weight Special Wavelets Based on Chebyshev Polynomials of the Second Kind and their Approximative Properties