Publications of Assist. Prof. Parvan Parvanov, Ph. D.

     1. P. E. Parvanov and B. D. Popov, The Limit Case Of Bernstein’s Operators With Jacobi Weights. Mathematica Balcanica(new series), Vol. 8, (1994), Fasc.2-3, 165-177

     2. P. E. Parvanov, Characterization Of Best Multivariate  Approximation From Below And From Above In Terms Of K-functional. Mathematica Balcanica(new series), Vol.11, (1997), Fasc.1-2, 37-50

     3. P. E. Parvanov, Characterization Of Best Algebraic Approximation From Below And From Above In The Multivariate Case. East Journal Of Approximation, Vol.5, Number 2 (1999),125-149

     4.  P. E. Parvanov, An Estimation Of Best Monotone Spline Approximation With Averaged Moduli Of Smoothness. Mathematica Balcanica(new series), Vol.13, (1999), Fasc.3-4, 421-424

     5. I. A. Parvanova and P. E. Parvanov , Exact Constants In Estimation Of The Error Of The Quadrature Formulae Of Simpson With Averaged Moduli Of Smoothness. Mathematica Balcanica(new series), Vol.15, (2001), Fasc.3-4, 303-316.

     6.  Kamen G. Ivanov and Parvan E. Parvanov , Weighted Approximation By The Goodman-Sharma Operators.  East Journal Of Approximation, Vol.15, Number 4 (2009),473-486

     7. Parvan E. Parvanov, Weighted Approximation By A Class Of Bernstein-type Operators. Mathematica Balcanica  Vol.25, (2011), Fasc.1-2, 31-38

     8. Borislav R. Draganov and Parvan E. Parvanov, On estimatingthe rate of best trigonometric approximation by modulus of smoothnes.  Acta Mathematica Hungarica (2011) Vol.131, Number 4, 360-379 

    9. Kamen G. Ivanov and Parvan E. Parvanov, Weighted Approximation By The Genuine Baskakov-type Operators. Acta Mathematica Hungarica

  10. Kamen G. Ivanov and Parvan E. Parvanov, Weighted Approximation by Meyer-König and Zeller-Type Operators. Proceedings Volume of CTF-2010, Sozopol, Bulgaria

( dedicated to the memory of Borislav Bojanov).