%0 Journal Article %T Parabolic equation with periodic condition on the so¬lution and the projection-difference method of its approximate solution %A Bondarev, A.. %K Hilbert space, parabolic equation, periodic condition, projection-difference method, time-implicit Euler’s method %J Actual directions of scientific researches of the XXI century: theory and practice %D 2014 %N 2 %P 3 %I FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov