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Journal of Approximation Theory

Academic Press Inc. · United States · Est. 1968

ISSN1096-0430

SJR Q2✓ WOS SCIE✓ Scopus / SJR

Impact Factor & Quartile · Web of Science (JCR)

✓ Indexed in the Web of Science Core Collection (SCIE) — Clarivate publishes an official Journal Impact Factor and JCR quartile for this journal.

See the official Impact Factor & quartile on the journal’s page ↗

The Impact Factor & JCR quartile are licensed by Clarivate — we link you to the official source instead of reprinting a number that can go out of date. Open metrics below: SCImago Q2. Source: Clarivate Journal Citation Reports.

📊 Standing in its field

Where this journal ranks among others in the same subject area.

SJR · Scopus

Top 50% in field

Clarivate’s JCR quartile is a separate ranking and may differ

SJR Scorei

0.4

H-Indexi

SNIPi

0.862

Total Worksi

6,169

Total Citationsi

85,299

2yr Mean Citednessi

0.68

Open Impact Factor alternative

Aims & Scope

Subject areas: Mathematics; Mathematics (miscellaneous); Analysis; Applied Mathematics; Numerical Analysis.

General Information

Country / RegionUnited States

Primary Language—

1st Year Published1968

Annual Volume~ 72 articles / year

StatusActive (last: 2026)

Total Publications6,169

Publisher OrgElsevier BV

Visit Journal Website

Submission Info

Peer Review—

OA License—

OA Rate—

Ethics & Quality

COPE Member✗ No

OASPA Member✗ No

Not on Predatory Lists✓ Yes

Think.Check.Submit Compliance

thinkchecksubmit.org

5/11 · 45%

✅

Do you know the journal / publisher?

Academic Press Inc.

✅

Does the journal have a website?

✓ Linked

✅

Is the ISSN verified?

1096-0430

✅

Indexed in a trusted database?

WoS, Scopus

❌

Peer review process documented?

N/A

❌

Follows ethical publishing standards (COPE)?

N/A

✅

Not on predatory/blacklists?

✓ Clean

❌

Long-term digital preservation?

N/A

❌

Plagiarism detection in place?

N/A

❌

Listed in DOAJ (verified OA)?

N/A

❌

Primary language documented?

N/A

A twelfth criterion — whether APC fees are clearly disclosed — is not scored here; it is left out of the total rather than counted as a failure. Publication charges appear in the metrics card above.

Based on the Think.Check.Submit framework by DOAJ, COPE & OASPA. All data from verified open sources.

Publication & Citation Trend

Articles published

Citations received

440

2019

311

2020

244

2021

161

2022

152

2023

2024

2025

2026

Source: OpenAlex · Each year’s green bar = citations earned by that year’s papers, counted to date — so recent years look lower simply because their papers haven’t had time to be cited yet.

SJR Quartile by Discipline

Scimago ranks this journal separately in each subject category — its quartile can differ by discipline.

Mathematics (miscellaneous)Q2

AnalysisQ3

Applied MathematicsQ3

Numerical AnalysisQ3

Subject Classification

Web of Science Categories

Mathematics

Scopus Categories

Mathematics (miscellaneous)Applied MathematicsNumerical AnalysisAnalysis

Research Topics (OpenAlex)

Mathematical functions and polynomialsApproximation Theory and Sequence SpacesAdvanced Numerical Analysis TechniquesMathematical Approximation and IntegrationIterative Methods for Nonlinear EquationsDiverse Scientific and Economic StudiesMatrix Theory and AlgorithmsAdvanced Banach Space TheoryHuman auditory perception and evaluationAdvanced Harmonic Analysis Research

Frequently asked questions about Journal of Approximation Theory

Is Journal of Approximation Theory a predatory journal?

PubScope has no integrity flags on record for Journal of Approximation Theory: it is indexed in Web of Science, Scopus, and is not on DOAJ's withdrawn list. Indexing is a transparency signal, not a guarantee — always confirm fit and policies before submitting.

What is the impact factor of Journal of Approximation Theory?

Journal of Approximation Theory is indexed in the Web of Science Core Collection, so Clarivate publishes an official Journal Impact Factor for it (since the 2023 Journal Citation Reports, every Core Collection journal — including Arts & Humanities and Emerging Sources titles — receives one). PubScope links to Clarivate's official source rather than reprinting the number, which can be out of date. Its open 2-year mean citedness is 0.68.

Is Journal of Approximation Theory indexed in Scopus and Web of Science?

Journal of Approximation Theory is indexed in Web of Science, Scopus.

What is the aims and scope of Journal of Approximation Theory?