Approximation by nonlinear integral operators via summability process

2020 ◽  
Vol 293 (3) ◽  
pp. 430-448 ◽  
Author(s):  
Ismail Aslan ◽  
Oktay Duman
2008 ◽  
Vol 2008 ◽  
pp. 1-10 ◽  
Author(s):  
Oh Sang Kwon ◽  
Nak Eun Cho

The purpose of the present paper is to investigate some subordination- and superordination-preserving properties of certain integral operators defined on the space of meromorphic functions in the punctured open unit disk. The sandwich-type theorem for these integral operators is also considered.


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