511.4 Gupta, Vijay. Approximation with Positive Linear Operators and Linear Combinations by Vijay Gupta, Gancho Tachev. - XIII, 186 p. 2 illus. in color. online resource. - (Developments in Mathematics, 50) Content notes : 1. Moments and Linear Combinations of Positive Linear Operators -- 2. Direct Estimates for Approximation by Linear Combinations -- 3. Inverse Estimates and Saturation Results for Linear Combinations -- 4. Voronovskaja Type Estimates -- 5. Pointwise Estimates for Linear Combinations -- 6. Voronovskaja's Theorem in Terms of Weighted Modulus of Continuity -- 7. Direct Estimates for Some New Operators -- 8. Convergence for Operators Based on Pǎltǎanea Basis -- Bibliography -- Index. . 9783319587950 * Mathematics. Numerical analysis. Functional analysis. Approximations and Expansions. Numerical Analysis. Functional Analysis. * Tachev, Gancho., aut, http://id.loc.gov/vocabulary/relators/aut * Title * Series