Premium
Approximation of Unbounded Functions by Linear Positive Operators
Author(s) -
Kasana H. S.,
Sollervall H.
Publication year - 1996
Publication title -
mathematische nachrichten
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 50
eISSN - 1522-2616
pISSN - 0025-584X
DOI - 10.1002/mana.3211800106
Subject(s) - mathematics , linear operators , operator theory , class (philosophy) , approx , linear map , pure mathematics , linear approximation , mathematical analysis , discrete mathematics , nonlinear system , quantum mechanics , computer science , physics , artificial intelligence , bounded function , operating system
A unified class of linear positive operators has been defined. Using these operators some approximation estimates have been obtained for unbounded functions. For particular linear positive operators these results sharpen and improve the earlier estimates due to Fuhua Cheng (J. Approx. Theory, 1984) and Xiehua Sun (J. Approx. Theory, 1988).