Complete Fractional Monotone Approximation

Main Article Content

George A. Anastassiou

Abstract

Here is developed the theory of complete fractional simultaneous monotoneuniform polynomial approximation with rates using mixed fractional lin-ear di¤erential operators.To achieve that, we establish rst ordinary simultaneous polynomialapproximation with respect to the highest order right and left fractionalderivatives of the function under approximation using their moduli ofcontinuity. Then we derive the complete right and left fractional simulta-neous polynomial approximation with rates, as well we treat their a¢ necombination. Based on the last and elegant analytical techniques, we de-rive preservation of monotonicity by mixed fractional linear di¤erentialoperators. We study special cases.

Article Details

How to Cite
Anastassiou, G. (2015). Complete Fractional Monotone Approximation. Acta Mathematica Universitatis Comenianae, 84(1), 103-121. Retrieved from http://www.iam.fmph.uniba.sk/amuc/ojs/index.php/amuc/article/view/69/130
Section
Articles

References

1] G.A. Anastassiou, Fractional Korovkin Theory, Chaos, Solitons and Fractals, 42 (2009), 2080-2094.

[2] G.A. Anastassiou, O. Shisha, Monotone approximation with linear di¤eren-
tial operators, J. Approx. Theory 44 (1985), 391-393.

[3] K. Diethelm, The Analysis of Fractional Di¤erential Equations, Lecture
Notes in Mathematics, Vol. 2004, 1st edition, Springer, New York, Heidelberg, 2010.

[4] A.M.A. El-Sayed, M. Gaber, On the …nite Caputo and …nite Riesz derivatives, Electronic Journal of Theoretical Physics, Vol. 3, No. 12 (2006), 81-95.

[5] O. Shisha, Monotone approximation, Paci…c J. Math. 15 (1965), 667-671.