Journal of Numerical Analysis and Approximation Theory

Journal of Numerical Analysis and Approximation Theory is published by Publishing House of the Romanian Academy. By OpenAlex counts of its recent articles, its largest topics are Approximation Theory and Sequence Spaces, Mathematical functions and polynomials and Mathematical Inequalities and Applications, together about 41.4% of its articles. Its main subfields are Numerical Analysis. (generated from OpenAlex topic counts and CAS ranking data)

Aims and scopeFounded 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 \(\mathbb{R}^n\), accompanied by numerical applications, are preferred to settings in \(\mathbb{R}\) 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 25 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. Journal of Numerical Analysis and Approximation Theory is a single-blind peer-reviewed journal. It considers for publication only papers written in English. There are no publication fees.Its former name is Revue d'Analyse Numérique et de Théorie de l'Approximation (see the history section). All the papers are freely available at the archives section, either scanned (1972-2000), or latex-pdf (since 2001).The journal is edited by Tiberiu Popoviciu Institute of Numerical Analysis (Romanian Academy) and published by the Publishing House of the Romanian Academy (Editura Academiei Române). Publication frequencyThe journal has been continuously publishing 2 issues per year since 1974. The number of pages per issue is set by the Publishing House of the Romanian Academy (Editura Academiei Române) and it is planned to increase twofold starting from 2023. Editorial oversightEditors-in-chief decide which editor is best suited to handle a review. Editors-in-chief can reject

From the journal's Aims & Scope

Research area (LetPub): Mathematics-Mathematics (miscellaneous)

Editor-in-chief Octavian AgratiniPublisher website

Editorial board by country: none in mainland China; most named Romania 8, United States 5, France 3, United Kingdom 2, Germany 1 (26 members with a country) Editorial board ↗Publisher website · 2026-11-01

CAS Journal Ranking

CiteScore quartiles (Scopus, June 2026 release)

Scopus ranks journals by CiteScore within each subject: the 75th percentile and above is Q1, then a quartile every 25 points. A different system from the CAS zones.LetPub

Database indexing

ScopusDOAJLetPub

International journal early-warning lists: not listed in any editionLetPub

Indexing the journal's website claims

ScimagoPublisher website

As the journal's website lists them, not checked against each database; for Web of Science editions the records above apply.

Editions, and major and minor categories, are shown separately and never merged into one zone; check which edition your institution uses before you submit or report.

Impact

CiteScore 2026-06

0.7LetPub · 2026-11-01

SJR 2026-06

0.19LetPub · 2026-11-01

SNIP 2026-06

0.54LetPub · 2026-11-01

h-index

16OpenAlex · 2026-11-01

i10-index

32OpenAlex · 2026-11-01

2-year mean citedness

0.58OpenAlex · 2026-11-01

Share of gold OA articles

0%LetPub · 2026-11-01

Sources count differently and were observed at different times, so each source's own value is kept; "publisher" marks figures from the journal's website.

Average review time (community reports)

about 20 weeksLetPub · 2026-11-01

Submission to publication

140 daysPublisher website · 2026-11-01

Submission to publication (journal-reported)

about 20 weeksDOAJ · 2026-11-01

Peer review

Single anonymous peer reviewDOAJ

Community reports come from authors' own submissions (confidence 0.5) and are not a promise from the journal; for publisher figures, the journal's own definitions apply.

• APC information ↗DOAJ
• Open access statement ↗DOAJ
• License & copyright ↗DOAJ

The journal's website is authoritative for fees; sources were observed at different times and each keeps its own value, without averaging.

Excerpts are quoted from the journal's website; "model summary" lines are written by Workers AI and checked against the text. The journal's website is authoritative.

Publisher

Publishing House of the Romanian Academy

Country or region

Romania

Language

English

ISSN

2457-6794

Electronic ISSN

2501-059X

Latest issue on the website

Volume 55, Issue 1 (2026)

Official links

• Journal homepage ↗LetPub
• Author guidelines ↗LetPub
• Aims & Scope ↗LetPub
• APC information ↗DOAJ
• Open access statement ↗DOAJ
• License & copyright ↗DOAJ
• Peer review process ↗LetPub
• Editorial board ↗LetPub