Leaderboards/Approximation Theory and Sequence Spaces

Approximation Theory and Sequence Spaces

Last updated July 7, 2026

Rising Stars

New and hot

Rising Stars Researchers

1
Hatice Öğülmüş
Düzce Üniversitesi
2
Hao Fu
China Three Gorges University
3
István Blahota
University of Nyíregyháza
4
Fernando Albiac
University of Missouri
5
Sahil Berwal
Central University of Haryana
6
Jagannath Nath
National Institute of Technology Agartala
7
Ibrahim S. Ibrahim
University of Zakho
8
Nonna Dzhusoeva
North Ossetian State University
9
Marco Cantarini
University of Perugia
10
Chandra Prakash
University of Delhi

Rising Stars Papers

1
Approximation by Riemann–Liouville type fractional α$$ \alpha $$‐Bernstein–Kantorovich operators
Mathematical Methods in the Applied Sciences|2024
28 cit.
2
Approximation by Subsequences of Matrix Transform Means of Some Two-Dimensional Rectangle Walsh–Fourier Series
Journal of Fourier Analysis and Applications|2024
6 cit.
3
Weighted Statistical Convergence and Cluster Points: The Fibonacci Sequence-Based Approach Using Modulus Functions
Mathematics|2024
6 cit.
4
The sets of $$\left( \alpha ,\beta \right) $$-statistically convergent and $$\left( \alpha ,\beta \right) $$-statistically bounded sequences of order $$\gamma $$ defined by modulus functions
Rendiconti del Circolo Matematico di Palermo Series 2|2024
5 cit.
5
Bessel statistical convergence: New concepts and applications in sequence theory
PLoS ONE|2024
5 cit.
6
Twenty-five years of greedy bases
Journal of Approximation Theory|2024
4 cit.
7
Narrow operators on <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si16.svg" display="inline" id="d1e26"><mml:mi>C</mml:mi></mml:math>-complete lattice-normed spaces
Nonlinear Analysis|2024
3 cit.
8
The lateral order on Köthe–Bochner spaces and orthogonally additive operators
Annals of Functional Analysis|2024
3 cit.
9
Linear versus nonlinear forms of partial unconditionality of bases
Journal of Functional Analysis|2024
3 cit.
10
Exploring a Novel Approach to Deferred Nörlund Statistical Convergence
Symmetry|2025
3 cit.

Emerging Leaders

Gaining momentum

Emerging Leaders Researchers

1
Md. Nasiruzzaman
University of Tabuk
2
Danilo Costarellı
University of Perugia
3
Reşat Aslan
Van Yüzüncü Yıl Üniversitesi
4
Sevda Yıldız
Sinop University
5
Qing‐Bo Cai
Quanzhou Normal University
6
Uğur Kadak
Heinrich Heine University Düsseldorf
7
Sadettin Kursun
Turkish Military Academy
8
Nesibe Manav Mutlu
Türkisch-Deutsche Universität
9
Emin Özdemir
Bursa Uludağ Üni̇versi̇tesi̇
10
Debjani Rakshit
ICFAI University, Tripura

Emerging Leaders Papers

1
Rate of approximation of blending type modified univariate and bivariate λ-Schurer-Kantorovich operators
Kuwait Journal of Science|2023
48 cit.
2
Approximation by a new Stancu variant of generalized <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si2.svg" display="inline" id="d1e1054"><mml:mrow><mml:mo>(</mml:mo><mml:mi>λ</mml:mi><mml:mo>,</mml:mo><mml:mi>μ</mml:mi><mml:mo>)</mml:mo></mml:mrow></mml:math>-Bernstein operators
Alexandria Engineering Journal|2024
48 cit.
3
Generalized Kantorovich forms of exponential sampling series
Analysis and Mathematical Physics|2022
46 cit.
4
Multivariate fuzzy neural network interpolation operators and applications to image processing
Expert Systems with Applications|2022
41 cit.
5
Multivariate neural network interpolation operators
Journal of Computational and Applied Mathematics|2022
40 cit.
6
Construction of q-Baskakov Operators by Wavelets and Approximation Properties
Iranian Journal of Science and Technology Transactions A Science|2022
40 cit.
7
Some approximation results on a class of new type λ-Bernstein polynomials
Journal of Mathematical Inequalities|2022
39 cit.
8
A note on a general sequence of $$\lambda $$-Szász Kantorovich type operators
Computational and Applied Mathematics|2024
36 cit.
9
Approximation by q-Bernstein-Stancu-Kantorovich operators with shifted knots of real parameters
Filomat|2022
35 cit.
10
Statistical Blending-Type Approximation by a Class of Operators That Includes Shape Parameters λ and α
Mathematics|2022
31 cit.

Current Senior Leaders

Established & currently active

Current Senior Leaders Researchers

1
Feyzı Başar
Inonu University
2
Cihan Orhan
Institute of Mathematics and Mechanics
3
S. A. Mohiuddine
King Abdulaziz University
4
M. ‎Mursaleen
National Institute of Technology Srinagar
5
Vijay Gupta
Netaji Subhas University of Technology
6
Gianluca Vıntı
Lucian Blaga University of Sibiu
7
Ioan Raşa
Technical University of Cluj-Napoca
8
Élliott H. Lieb
Princeton University
9
Mikâil Et
Fırat University
10
Ding‐Xuan Zhou
City University of Hong Kong

Current Senior Leaders Papers

1
Two theorems on the Hubbard model
Physical Review Letters|1989
2.2k cit.
2
A relation between pointwise convergence of functions and convergence of functionals
Proceedings of the American Mathematical Society|1983
2k cit.
3
The finite group velocity of quantum spin systems
Communications in Mathematical Physics|1972
1.4k cit.
4
Existence and Uniqueness of the Minimizing Solution of Choquard's Nonlinear Equation
Studies in Applied Mathematics|1977
1.3k cit.
5
Density functionals for coulomb systems
International Journal of Quantum Chemistry|1983
1.2k cit.
6
A Relation Between Pointwise Convergence of Functions and Convergence of Functionals
Proceedings of the American Mathematical Society|1983
1.2k cit.
7
Sharp Constants in the Hardy-Littlewood-Sobolev and Related Inequalities
Annals of Mathematics|1983
1.1k cit.
8
On the superradiant phase transition for molecules in a quantized radiation field: the dicke maser model
Annals of Physics|1973
1.1k cit.
9
Relations between the ‘percolation’ and ‘colouring’ problem and other graph-theoretical problems associated with regular planar lattices: some exact results for the ‘percolation’ problem
Proceedings of the Royal Society of London A Mathematical and Physical Sciences|1971
1k cit.
10
Exact Solution of a Many-Fermion System and Its Associated Boson Field
Journal of Mathematical Physics|1965
982 cit.

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