Nonlocal Estimates of First Derivatives of the Solutions of the Initial-Boundary Problem for Nonuniformly Elliptic and Nonuniformly Parabolic Nondivergent Equations -- Some Remarks on The Convergence of Sequences of Functions of Polynomial Type in Wpl(G) Spaces -- Initial-Boundary Problem for Navier-Stokes Equations in Domains with Time-Varying Boundaries -- On Some Classes of Nonuniformly Elliptic Equations -- Expansions in Characteristic Vectors of Nonunitary Operators and the Characteristic Function -- On the Order of Decrease at Infinity of a Function whose Fourier Transform is Localized on a Curve.