Mironenko A. V.
           An estimate for the least uniform deviation from the class 
          of functions with bounded second derivative 
        We consider the problem of uniform approximation of a continuous function 
          on an interval by means of the class of functions with bounded second 
          derivative. We prove an estimate for the least uniform deviation of 
          a function in terms of its local deviations on uniform and nonuniform 
          three-point grids.