The direct and converse inequalities for Jackson-type operators on spherical cap.
Wang, Yuguang, Cao, Feilong (2009)
Journal of Inequalities and Applications [electronic only]
Similarity:
Wang, Yuguang, Cao, Feilong (2009)
Journal of Inequalities and Applications [electronic only]
Similarity:
Sheng, Bao-Huai, Xiang, Dao-Hong (2010)
Journal of Inequalities and Applications [electronic only]
Similarity:
Sommen, F.
Similarity:
S. M. Nikol'skii, P. I. Lizorkin (1989)
Banach Center Publications
Similarity:
Kalf, Hubert (1995)
Bulletin of the Belgian Mathematical Society - Simon Stevin
Similarity:
Oliveira, C.P. (2005)
Journal of Applied Mathematics
Similarity:
Sommen, F.
Similarity:
Alexandrov, Victor (1997)
Beiträge zur Algebra und Geometrie
Similarity:
John Hymers
Similarity:
Yan Xu (2011)
Annales Polonici Mathematici
Similarity:
By using an extension of the spherical derivative introduced by Lappan, we obtain some results on normal functions and normal families, which extend Lappan's five-point theorems and Marty's criterion, and improve some previous results due to Li and Xie, and the author. Also, another proof of Lappan's theorem is given.