subdivision surfaces; Catmull-Clark subdivision algorithm; midpoint subdivision; difference schemes; extraordinary points; characteristic map; non-stationary subdivision.

Chen Q., Prautzsch H. (2013) "Subdivision by WAVES – Weighted AVEraging Schemes " Dolomites Research Notes on Approximation, 6(Special_Issue), 9-19. DOI: 10.14658/PUPJ-DRNA-2013-Special_Issue-3