@article{etna_vol39_pp32-45, author = {T. V. S. Sekhar and R. Sivakumar and S. Vimala and Y. V. S. S. Sanyasiraju}, title = {A combined fourth-order compact scheme with an accelerated multigrid method for the energy equation in spherical polar coordinates}, journal = {Electron. Trans. Numer. Anal.}, volume = {39}, year = {2012}, pages = {32--45}, }