On the Remainder Term of Some Bivariate Approximation Formulas Based on Linear and Positive Operators

Dan BĂRBOSU

Approximation of Modified Jakimovski-Leviatan-Beta Type Operators

Mohammad MURSALEEN, Mohammad NASIRUZZAMAN

On the Bézier Variant of the Srivastava-Gupta Operators

Arun KAJLA

Notes on Some Recent Papers Concerning $F$-Contractions in $b$-Metric Spaces

Zoran KADELBURG, Stojan RADENOVIĆ

A Survey on Estimates for the Differences of Positive Linear Operators

Ana Maria ACU, Sever HODIŞ, Ioan RAŞA