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Forum of Mathematics, Sigma

Cambridge University Press · United Kingdom

ISSN2050-5094eISSN2050-5094

SJR Q1✓ WOS SCIE✓ Scopus / SJR✓ DOAJ✓ Open Access

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JCR quartile are licensed by Clarivate — we link you to the official source instead of reprinting a number that can go out of date.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 Q1. Source: Clarivate Journal Citation Reports.

📊 Standing in its field

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

SJR · Scopus

Top 25% in field

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

SJR Scorei

1.635

H-Indexi

SNIPi

1.581

Total Worksi

956

Total Citationsi

5,571

2yr Mean Citednessi

1.02

Open Impact Factor alternative

Aims & Scope

Forum of Mathematics, Sigma is a journal dedicated to publishing high-quality research in mathematics. It covers a wide range of mathematical topics, including algebra, analysis, geometry, topology, number theory, and applied mathematics. The journal aims to provide a platform for mathematicians to share their latest findings and contribute to the advancement of mathematical knowledge.

General Information

Country / RegionUnited Kingdom

Primary LanguageEnglish

1st Year Published—

Annual Volume~ 148 articles / year

StatusActive (last: 2026)

Total Publications956

Publisher OrgCambridge University Press

OA Since2012

Visit Journal Website

Submission Info

Peer ReviewPeer review

OA LicenseCC BY, CC BY-SA, CC BY-ND, CC BY-NC, CC BY-NC-SA, CC BY-NC-ND

OA Rate—

Ethics & Quality

COPE Member✗ No

OASPA Member✗ No

Not on Predatory Lists✓ Yes

Plagiarism Detection✗ No

Think.Check.Submit Compliance

thinkchecksubmit.org

8/11 · 73%

✅

Do you know the journal / publisher?

Cambridge University Press

✅

Does the journal have a website?

✓ Linked

✅

Is the ISSN verified?

2050-5094 / 2050-5094

✅

Indexed in a trusted database?

WoS, Scopus, DOAJ

✅

Peer review process documented?

Peer review

❌

Follows ethical publishing standards (COPE)?

N/A

✅

Not on predatory/blacklists?

✓ Clean

❌

Long-term digital preservation?

N/A

❌

Plagiarism detection in place?

✅

Listed in DOAJ (verified OA)?

DOAJ verified

✅

Primary language documented?

English

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

555

2019

616

2020

445

2021

117

702

2022

117

487

2023

128

299

2024

198

158

2025

121

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.

Algebra and Number TheoryQ1

AnalysisQ1

Computational MathematicsQ1

Discrete Mathematics and CombinatoricsQ1

Geometry and TopologyQ1

Mathematical PhysicsQ1

Statistics and ProbabilityQ1

Theoretical Computer ScienceQ1

Subject Classification

Web of Science Categories

MathematicsMathematics, Applied

Scopus Categories

Mathematical PhysicsTheoretical Computer ScienceDiscrete Mathematics and CombinatoricsComputational MathematicsAnalysisAlgebra and Number TheoryStatistics and ProbabilityGeometry and Topology

Research Topics (OpenAlex)

Algebraic Geometry and Number TheoryAdvanced Algebra and GeometryAlgebraic structures and combinatorial modelsHomotopy and Cohomology in Algebraic TopologyGeometric and Algebraic TopologyAdvanced Combinatorial MathematicsAdvanced Topics in AlgebraLimits and Structures in Graph TheoryFinite Group Theory ResearchGeometry and complex manifolds

Frequently asked questions about Forum of Mathematics, Sigma

Is Forum of Mathematics, Sigma a predatory journal?

PubScope has no integrity flags on record for Forum of Mathematics, Sigma: it is indexed in Web of Science, Scopus, DOAJ, 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 Forum of Mathematics, Sigma?

Forum of Mathematics, Sigma 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 1.02.

Is Forum of Mathematics, Sigma indexed in Scopus and Web of Science?

Forum of Mathematics, Sigma is indexed in Web of Science, Scopus, DOAJ.