- 2018
37.
Heilmann, Margareta; Nasaireh, Fadel; Raşa, Ioan
Beta and related operators revisited
Constructive Theory of Functions, Proceedings, Page 175-185
CTF 2016
Sozopol, Bulgaria
June 11-17, 2016
In K. Ivanov, G. Nikolov, R. Uluchev, Editor
Publisher: Prof. Marin Drinov Academic Publishing House
2018- 2017
36.
Heilmann, Margareta; Raşa, Ioan
Eigenstructure and iterates for uniquely ergodic Kantorovich modifications of operators
Positivity, 21 (3) :897-910
2017- 2016
35.
Gonska, Heiner; Heilmann, Margareta; Raşa, Ioan
Eigenstructure of the genuine Beta operators of Lupaş and Mühlbach
Stud. Univ. Babes-Bolyai Math., 61 (3) :383-388
201634.
Baumann, Katharina; Heilmann, Margareta; Raşa, Ioan
Further results for k-th order Kantorovich modification of linking Baskakov type operators
Results in Mathematics, 69 (3) :297-315
2016
ISSN: 1420-901233.
Aral, Ali; Gonska, Heiner; Heilmann, Margareta; Tachev, G.
Quantitative Voronovskaya-type Results for Polynomially Bounded Functions
Results in Mathematics, 70 :313-324
2016- 2015
32.
Heilmann, Margareta; Raşa, Ioan
On the decomposition of Bernstein operators
Numerical Functional Analysis and Optimization, 36 (1) :72-85
201531.
Heilmann, Margareta; Raşa, Ioan
k-th order Kantorovich type modification of linking Baskakov type operators
Mathematical Analysis and its Applications - Proceedings of the Conference ICRTMAA 2014, Roorkee, IndiaVolume 143from Springer Proceedings in Mathematics and Statistics, Page 229-242
International Conference on Recent Trends in Mathematical Analysis and its Applications
Roorkee, India
December 2014
In Agrawal, P.N. and Mohapatra, R.N. and Singh, U. and Srivastava, H.M., Editor
Publisher: Springer
201530.
Heilmann, Margareta
Commutativity and Spectral Properties of Genuine Baskakov-Durrmeyer Type Operators and their kth order Kantorovich Modification
Journal of Numerical Analysis and Approximation Theory, 44 (2) :166-179
2015- 2014
29.
Heilmann, Margareta; Raşa, Ioan
k-th order Kantorovich type modification of the operators U_n^ρ
Journal of Applied Functional Analysis, 9 (3-4) :20-334
2014- 2013
28.
Heilmann, Margareta; Tachev, G.
Linear combinations of genuine Szász-Mirakjan-Durrmeyer operators
Advances in Applied Mathematics and Approximation - Contributions from AMAT 2012Volume 41, Page 85-106
Applied Mathematics and Approximation Theory 2012
Ankara, Turkey
May 2012
In Anastassiou, George A. and Duman, Oktay, Editor
Publisher: Springer Proceedings in Mathematics and Statistics
2013- 2012
27.
Gonska, Heiner; Heilmann, Margareta; Lupaş, Alexandru; Raşa, Ioan
On the composition and decomposition of positive linear operators III: A non-trivial decomposition of the Bernstein operator
201226.
Heilmann, Margareta; Wagner, M.
Strong converse results for Baskakov-Durrmeyer operators
Constructive Theory of Functions, Proceedings of the International Conference, Sozopol, Bulgaria, 2010, Page 141-149
Constructive Theory of Functions
Sozopol, Bulgaria
June 2010
In G. Nikolov et al., Editor
Publisher: Prof. Marin Drinov Academic Publishing House
201225.
Heilmann, Margareta; Wagner, M.
The genuine Bernstein-Durrmeyer operators and quasi-interpolants
Results in Mathematics, 62 (3-4) :319-335
2012- 2011
24.
Heilmann, Margareta; Tachev, G.
Commutativity, Direct and Strong Converse Results for Phillips Operators
East Journal on Approximation, 17 (3) :299-317
201123.
Gonska, Heiner; Heilmann, Margareta; Raşa, Ioan
Kantorovich operators of order k
Numerical Functional Analysis and Optimization, 32 (7) :717-738
2011- 2010
22.
Gonska, Heiner; Heilmann, Margareta; Raşa, Ioan
Asymptotic behaviour of differentiated Bernstein polynomials revisited
General Mathematics, 18 (1) :55-70
201021.
Schäfer, M.; Berchtold, W.; Heilmann, Margareta; Zmudzinski, S.; Steinebach, M.
Collosion secure fingerprint watermarking for real world applications
GI-Edition - Lecture Notes in Informatics, Beiträge der 5. Jahrestagung des Fachbereichs Sicherheit der Gesellschaft f, Page 129-140
Publisher: Bonner K
201020.
Heilmann, Margareta; Wagner, M.
Strong converse results for Bernstein-Durrmeyer operators and their quasi-interpolants
General Mathematics, 18 (1) :45-53
2010- 2009
19.
Gonska, Heiner; Heilmann, Margareta; Raşa, Ioan
Convergence of iterates of genuine and ultraspherical Durrmeyer operators to the limiting semigroup: C^2-estimates
Journal Approx. Theory, 160 :243-255
2009- 2004
18.
Abel, Ulrich; Heilmann, Margareta
The complete asymptotic expansion for Bernstein-Durrmeyer operators with Jacobi weights
Mediterranean Journal of Mathematics, 1 (4) :487-499
2004- 2003
17.
Heilmann, Margareta
Rodriguez-type representation for the eigenfunctions of Durrmeyer-type operators
Results in Mathematics, 44 (1-2) :97-105
200316.
Heilmann, Margareta
Eigenfunctions of Durrmeyer-type modifications of Meyer-König and Zeller operators
Journal of Approximation Theory, 125 (1) :63-73
200315.
Heilmann, Margareta
Commutativity of Durrmeyer-type modifications of Meyer-König and Zeller and Baskakov-operators
Constructive Theory of Functions - Proceedings of the International Conference, Varna, Bulgaria, 2002, Page 295-301
In B. Bojanov et al., Editor
Publisher: Sofia: DARBA
2003- 1995
14.
Heilmann, Margareta
Explicit Voronovskaja-type results for linear combinations of BDT-operators
Approximation Theory and its Applications, 11 (1) :54-61
199513.
Heilmann, Margareta
Saturation of linear combinations of Baskakov-Durrmeyer-type operators
Applicable Analysis, 59 (1-4) :93-107
1995
Last modified: 14.12.2022
