Differential Operators with Second-Order Degeneracy and Positive Approximation Processes

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	Year	Citations
Some probabilistic methods in the theory of approximation operators Rasul A. Khan Acta Mathematica Academiae Scientiarum Hungaricae Approximation OperatorsEngineeringProbabilistic AnalysisApproximation MethodProbability Theory	1980	46
On Some Degenerate Differential Operators on Weighted Function Spaces Francesco Altomare, Ingrid Carbone Journal of Mathematical Analysis and Applications Generalized FunctionGlobal AnalysisFunctional AnalysisWeighted Function SpacesNonlinear Functional Analysis	1997	24
Uniform approximation by positive operators on infinite intervals Analysis Mathematica Linear OperatorEngineeringInterpolation SpaceFunctional AnalysisApproximation Theory	1984	23
On a Class of Elliptic-Parabolic Equations on Unbounded Intervals Francesco Altomare, Elisabetta M. Mangino Positivity	2001	17
Shape Preserving Properties of Some Positive Linear Operators on Unbounded Intervals Ingrid Carbone Journal of Approximation Theory Spectral TheoryPositive Linear OperatorsLinear OperatorEngineeringRiemann-hilbert Problem	1998	13

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