%0 Journal Article
%T Degree of approximation of functions belonging to Lip¦Á class and weighted (Lr,¦Î(t)) class by product summability method
%A Hare Krishna Nigam
%J Surveys in Mathematics and its Applications
%D 2010
%I University Constantin Brancusi of Targu-Jiu
%X A good amount of work has been done on degree of approximation of functions belonging to Lip¦Á, Lip(¦Á,r), Lip(¦Î(t),r) and W(Lr, ¦Î(t)) classes using Ces¨¤ro and (generalized) N rlund single summability methods by a number of researchers like Alexits, Sahney, Goel, Qureshi, Neha, Chandra, Khan, Leindler and Rhoades. But till now no work seems to have been done so far in the direction of present work. Therefore, in present paper, two quite new results on degree of approximation of functions f¡Ê Lip¦Á and f¡Ê W(Lr,¦Î(t)) class by (E,1)(C,1) product summability means of Fourier series have been obtained.
%K Degree of approximation
%K Lip¦Á class
%K W(Lr
%K ¦Î (t)) class of functions
%K (E
%K 1) means
%K (C
%K 1) means
%K (E
%K 1)(C
%K 1) product means
%K Fourier series
%K Lebesgue integral
%U http://www.utgjiu.ro/math/sma/v05/p10.pdf