Self-intersections of rational Bézier curves. - Chun-Gang Zhu; Xuan-Yi Zhao (Graph. Model., 2014)

Injectivity conditions of rational Bézier surfaces. - Xuan-Yi Zhao; Chun-Gang Zhu (Comput. Graph., 2015)

Injectivity of NURBS curves. - Xuan-Yi Zhao; Chun-Gang Zhu (J. Comput. Appl. Math., 2016)

Geometric conditions of non-self-intersecting NURBS surfaces. - Xuan-Yi Zhao; Chun-Gang Zhu; Han Wang 007 (Appl. Math. Comput., 2017)

The number of regular control surfaces of toric patch. - Han Wang 007; Chun-Gang Zhu; Xuan-Yi Zhao (J. Comput. Appl. Math., 2018)