Zhang Ren-jiang

Constrained Bézier curves' best multi-degree reduction in the L2-norm

Wang Guo-jin, Wang Guo-jin, Zhang Ren-jiang, 2005 .

Improvement of the termination criterion for subdivision of the rational Bézier curves

Wang Guo-jin, Zhang Ren-jiang, 2003 .

The sharp upper bound on the distance between a parametric patch and its interpolated triangle

Wang Guo-jin, Zhang Ren-jiang, 2008 .