Margareta Heilmann

57.

Abel, Ulrich; Acu, Ana Maria; Heilmann, Margareta; Raşa, Ioan
Asymptotic properties for a general class of Szasz-Mirakjan-Durrmeyer operators
2024

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56.

Abel, Ulrich; Acu, Ana Maria; Heilmann, Margareta; Raşa, Ioan
Commutativity and spectral properties for a general class of Szasz-Mirakjan-Durrmeyer operators
2024

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55.

Abel, Ulrich; Acu, Ana Maria; Heilmann, Margareta; Raşa, Ioan
On some Cauchy problems and positive linear operators
2024

54.

Abel, Ulrich; Acu, Ana Maria; Heilmann, Margareta; Raşa, Ioan
Voronovskaja formula for Aldaz–Kounchev–Render operators: uniform convergence
Analysis and Mathematical Physics, 14 (1)
Dezember 2023
ISSN: 1664-235X

DOI: 10.1007/s13324-023-00861-3

53.

Acu, Ana-Maria; Heilmann, Margareta; Raşa, Ioan; Seserman, Andra
Convergence of linking Durrmeyer type modifications of generalized Baskakov operators
Bulletin of the Malaysian Math. Sciences Society, 46 (3)
2023

DOI: 10.1007/s40840-023-01503-4

52.

Abel, Ulrich; Acu, Ana Maria; Heilmann, Margareta; Raşa, Ioan
Genuine Bernstein–Durrmeyer type operators preserving 1 and $x^j$
Annals of Functional Analysis, 15 (1)
Oktober 2023
Herausgeber: Springer Science and Business Media LLC
ISSN: 2008-8752

DOI: 10.1007/s43034-023-00305-w

51.

Acu, Ana-Maria; Heilmann, Margareta; Raşa, Ioan; Seserman, Andra
Poisson approximation to the binomial distribution: extensions to the convergence of positive operators
Rev. Real Acad. Cienc. Exactas Fis. Nat. Ser. A-Mat., 117
2023

DOI: 0.1007/s13398-023-01497-5

50.

Abel, Ulrich; Acu, Ana Maria; Heilmann, Margareta; Raşa, Ioan
Positive linear operators preserving certain monomials on [0, ∞)
Dolomites Research Notes on Approximation, 16 :1-9
2023
ISSN: 2035-6803

DOI: 10.14658/PUPJ-DRNA-2023-3-2

49.

Acu, Ana-Maria; Heilmann, Margareta; Raşa, Ioan
Some results for the inverse of a Bernstein–Schnabl type operator
Analysis and Mathematical Physics, 13 (1)
2023

DOI: 10.1007/s13324-022-00777-4

48.

Acu, Ana-Maria; Dancs, Madalina; Heilmann, Margareta; Raşa, Ioan; Paşca, Vlad
A Bernstein-Schnabl type operator
Applicable Analysis and Discrete Mathematics, 16(2) :495-507
2022

DOI: 10.2298/AADM210714011A

47.

Acu, Ana-Maria; Dancs, Madalina; Heilmann, Margareta; Raşa, Ioan; Paşca, Vlad
Voronovskaya type results for special sequences of operators
RACSAM, 116,19
2022

DOI: 10.1007/s13398-021-01157-6

46.

Acu, Ana-Maria; Gonska, Heiner; Heilmann, Margareta
Remarks on a Bernstein-type operator of Aldaz, Kounchev and Render
2021

DOI: 10.48550/arXiv.2108.07889

45.

Acu, Ana-Maria; Heilmann, Margareta; Raşa, Ioan
Iterates of convolution-type operators
Positivity, 25 :495-506
2021

DOI: 10.1007/s11117-020-00773-7

44.

Acu, Ana-Maria; Heilmann, Margareta; Raşa, Ioan
Eigenstructure and iterates for uniquely ergodic Kantorovich modifications of operators II
Positivity, 25 :1585-1599
2021

DOI: 10.1007/s11117-021-00832-7

43.

Abel, Ulrich; Heilmann, Margareta; Kushnirevych, Vitaliy
Convergence of linking Baskakov-type operators
Periodica Mathematica Hungarica, 80 :280-288
2020

DOI: 10.1007/s10998-020-00337-y

42.

Heilmann, Margareta; Nasaireh, Fadel; Raşa, Ioan
Discrete operators associated with linking operators
Analysis and Mathematical Physics, 10 (72)
2020

DOI: 10.1007/s13324-020-00423-x

41.

Berdysheva, Elena; Heilmann, Margareta; Hennings, Katharina
Pointwise convergence of the Bernstein-Durrmeyer operator with respect to a collection of measures
Journal of Approximation Theory, 251, Article 105339
2020

DOI: 10.1016/j.jat.2019.105339

40.

Acu, Ana-Maria; Heilmann, Margareta; Raşa, Ioan
Strong converse results for linking operators and convex functions
Journal of Function Spaces
2020

DOI: 10.1155/2020/4049167

39.

Heilmann, Margareta; Nasaireh, Fadel; Raşa, Ioan
Beta and related operators revisited
Constructive Theory of Functions, Proceedings, Seite 175-185
CTF 2016
Sozopol, Bulgaria
June 11-17, 2016
In K. Ivanov, G. Nikolov, R. Uluchev, Editor
Herausgeber: Prof. Marin Drinov Academic Publishing House
2018

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38.

Heilmann, Margareta; Raşa, Ioan
C0-semigroups associated with uniquely ergodic Kantorovich modifications of operators
Positivity, 22 :829-835
2018

DOI: 10.1007/s11117-017-0547-0

37.

Heilmann, Margareta; Nasaireh, Fadel; Raşa, Ioan
Complements to Voronovskaja's formula
Mathematics and Computing - ICMC 2018,Band Springer Proceedings in Mathematics and Computing, Seite 127-134
ICMC 2018
Varanasi, India
January 9-11, 2018
In Debdas Ghosh, Debasis Giri, Ram N. Mohapatra, Kouichi Sakurai, Ekrem Savas and Tanmoy Som, Editor
Herausgeber: Springer
2018

DOI: 10.1007/978-981-13-2095-8

36.

Heilmann, Margareta; Raşa, Ioan
A Nice Representation for a Link between Bernstein-Durrmeyer and Kantorovich Operators
Proceedings of ICMC 2017Band Springer Proceedings in Mathematics and Computing, Seite 312-320
ICMC 2017
Haldia, India
January 2016
In D. Giri et. al., Editor
Herausgeber: Springer
2017

DOI: 10.1007/978-981-10-4642-1_26

35.

Heilmann, Margareta; Raşa, Ioan
Eigenstructure and iterates for uniquely ergodic Kantorovich modifications of operators
Positivity, 21 (3) :897-910
2017

DOI: 10.1007/s11117-016-0441-1

34.

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
2016

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33.

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: 1420-9012

DOI: 10.1007/s00025-015-0511-x