Journal of Numerical Analysis and Approximation Theory

Aims & Scope

Founded in 1972, Journal of Numerical Analysis and Approximation Theory publishes original papers presenting rigorous analysis, numerical methods with theoretical results (accuracy, convergence, stability), computational examples, development and implementation of numerical algorithms, and the interplay between these aspects for topics such as: differential equations (ordinary and partial), optimization, control theory, inverse problems, nonlinear equations and systems, iterative methods, numerical linear algebra, applied functional analysis, approximation theory, interpolation, mathematical aspects of neural networks and machine learning, mathematical modeling, scientific computing.

Papers dealing with iterative methods in , accompanied by numerical applications, are preferred to settings in or abstract spaces (with no concrete applications indicated).

Applications and strong connections to the aspects mentioned above are mandatory for papers whose main topics concern, for example, inequalities, fractional equations, fuzziness.

It is recommended that original papers do not exceed 20 pages in length.

Reproducibility: Authors should include sufficient information in the manuscript to enable the results of the manuscript to be reproduced.

It is recommended to include an online repository containing relevant software and data.

The journal also publishes survey papers in all areas of Numerical Analysis and Approximation Theory, recommended not to exceed 40 pages.

Metrics & Ranking

Abstracting & Indexing

Journal is indexed in leading academic databases, ensuring global visibility and accessibility of our peer-reviewed research.

• Scopus
• Google Scholar
• Directory of Open Access Journals (DOAJ)

Subjects & Keywords

Journal’s research areas, covering key disciplines and specialized sub-topics in Mathematics, designed to support cutting-edge academic discovery.

Licensing & Copyright

This journal operates under an Open Access model. Articles are freely accessible to the public immediately upon publication. The content is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0), allowing users to share and adapt the work with proper attribution.

Copyright remains with the author(s), and no permission is required for non-commercial use, provided the original source is cited.

Policy Links

This section provides access to essential policy documents, guidelines, and resources related to the journal’s publication and submission processes.

• Aims scope
• Homepage
• Oa statement
• Author instructions
• License terms
• Review url
• Board url
• Copyright url
• Apc url
• License

APC Details

The journal’s Article Processing Charge (APC) policies support open access publishing in Mathematics, ensuring accessibility and quality in research dissemination.

This journal does not charge a mandatory Article Processing Charge (APC). However, optional open access publication may incur fees based on the publisher’s policies.

Explore journals without APCs for alternative publishing options.

Most Cited Articles

The Most Cited Articles section features the journal's most impactful research, based on citation counts. These articles have been referenced frequently by other researchers, indicating their significant contribution to their respective fields.

• Meyer-König and Zeller operators based on the \(q\)-integers

  Citation: 36

  Authors: Tiberiu

• Approximating solutions of equations using Newton's method with a modified Newton's method iterate as a starting point

  Citation: 28

  Authors: Ioannis

• Extensions of semi-Lipschitz functions on quasi-metric spaces

  Citation: 22

  Authors: Costică

• On Baskakov operators preserving the exponential function

  Citation: 18

  Authors: Ovgu Gurel, Vijay, Ali

• General multivariate arctangent function activated neural network approximations

  Citation: 18

  Authors: George A.

• On the extremal semi-Lipschitz functions

  Citation: 15

  Authors: Costică

• Exact orders in simultaneous approximation by complex Bernstein-Stancu polynomials

  Citation: 12

  Authors: Sorin G.

• Approximation by complex Bernstein-Kantorovich and Stancu-Kantorovich polynomials and their iterates in compact disks

  Citation: 12

  Authors: Sorin G.

• Rate of convergence of Stancu beta operators for functions of bounded variation

  Citation: 12

  Authors: Ulrich, Vijay

• Comparison of some optimal derivative-free three-point iterations

  Citation: 11

  Authors: Thugal, Khuder