Some new error estimates of a semidiscrete finite volume element method for a parabolic integro-differential equation with nonsmooth initial data Academic Article uri icon


  • A semidiscrete finite volume element (FVE) approximation to a parabolic integro-differential equation (PIDE) is analyzed in a two-dimensional convex polygonal domain. An optimal-order L 2-error estimate for smooth initial data and nearly the same optimal-order L 2-error estimate for nonsmooth initial data are obtained. More precisely, for homogeneous equations, an elementary energy technique and a duality argument are used to derive an error estimate of order O (t -1/h 2 ln h) in the L 2-norm for positive time when the given initial function is only in L 2. 2006 Society for Industrial and Applied Mathematics.

published proceedings

  • SIAM Journal on Numerical Analysis

author list (cited authors)

  • Sinha, R. K., Ewing, R. E., & Lazarov, R. D.

citation count

  • 23

complete list of authors

  • Sinha, Rajen K||Ewing, Richard E||Lazarov, Raytcho D

publication date

  • January 2006