Journal profile · Mathematics
Semigroup Forum
ISSN 0037-1912 · eISSN 1432-2137 · Springer US · GERMANY · Bimonthly · Founded 1970
Semigroup Forum: CAS Zone 3 · Mathematics (2025 upgraded edition); impact factor 0.7; hybrid open access; APC about USD 3,090; median 186 days to acceptance (86 articles, last 24 months); community-reported acceptance: easy; 106 articles in 2025; indexed in SCIE and Scopus.
Scope
Aims, scope and focus
Semigroup Forum is published by Springer US and is in Zone 3 of Mathematics in the CAS Journal Ranking (2025 upgraded edition). By OpenAlex counts of its recent articles, its largest topics are semigroups and automata theory, Advanced Algebra and Logic and Fuzzy and Soft Set Theory, together about 50.5% of its articles. (generated from OpenAlex topic counts and CAS ranking data)
Semigroup Forum is a platform for speedy and efficient transmission of information on current research in semigroup theory. Scope: Algebraic semigroups, topological semigroups, partially ordered semigroups, semigroups of measures and harmonic analysis on semigroups, transformation semigroups, semigroups of operators, and applications of semigroup theory to other disciplines such as ring theory, category theory, automata, logic, etc. Language: English. Survey Articles: Expository, of any length. May include original work, but should present the nonspecialist with a reasonably elementary and selfcontained account of the fundamental parts of the subject. Research Articles: Will be subject to the usual refereeing procedure. Short Notes: (Maximum 4 pages) Worthy of the readers’ attention, such as new proofs, significant generalizations of known facts, comments on unsolved problems, historical remarks, etc. Abstracts for Reviewing Journals: Authors are invited to provide with their manuscript a one-page abstract of their contribution with key words and phrases and with subject matter classification. This material will be forwarded to zbMATH.
From the journal's Aims & Scope
Research area (LetPub): Mathematics
Editor-in-chief Mikhail VolkovPublisher website
Editorial board by country: none in mainland China; most named United States 7, United Kingdom 4, Germany 3, Italy 3, Poland 3 (34 members with a country) Editorial board ↗Publisher website ·
Main research topics OpenAlex counts of recent articles; shares are approximate
- semigroups and automata theoryComputer Science23.1%
- Advanced Algebra and LogicComputer Science16.4%
- Fuzzy and Soft Set TheoryDecision Sciences10.9%
- Rings, Modules, and AlgebrasMathematics7.1%
- Geometric and Algebraic TopologyMathematics4.5%
- Advanced Topics in AlgebraMathematics3.8%
- Advanced Topology and Set TheoryMathematics3.6%
- Mathematical Dynamics and FractalsMathematics2.9%
Rankings & indexing
CAS ranking and database indexing
CAS Journal Ranking
CAS Journal Ranking, upgraded edition (March 2025)Mathematics Zone 3
| Level | Category | Zone |
|---|---|---|
| Major | Mathematics | Zone 3 |
| Minor | Mathematics | Zone 3 |
Top journal: noReview journal: no
CAS Xinrui Journal Ranking (March 2026)Mathematics Zone 3
| Level | Category | Zone |
|---|---|---|
| Major | Mathematics | Zone 3 |
| Minor | Mathematics | Zone 3 |
Top journal: noReview journal: not marked
CAS Journal Ranking, previous upgraded edition (December 2023)Mathematics Zone 3
| Level | Category | Zone |
|---|---|---|
| Major | Mathematics | Zone 3 |
| Minor | Mathematics | Zone 3 |
Top journal: noReview journal: no
Database indexing
SCIEScopusLetPub
International journal early-warning lists: not listed in any editionLetPub
Indexing the journal's website claims
zbMATHPublisher website
Other: Google Scholar, EBSCO, ProQuest, Dimensions, CNKI, Baidu, Naver, OCLC, Portico, CLOCKSS
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.
Metrics
Impact metrics and publication volume
Impact
- Impact factor
- 0.7LetPub ·
- Impact factor (publisher) 2025
- 0.7Publisher website ·
- 5-year impact factor (publisher) 2025
- 0.7Publisher website ·
- CiteScore 2026-06
- 1.2LetPub ·
- SJR 2026-06
- 0.6LetPub ·
- SNIP 2026-06
- 1LetPub ·
- h-index
- 31LetPub ·
- h-index
- 60OpenAlex ·
- i10-index
- 998OpenAlex ·
- 2-year mean citedness
- 0.49OpenAlex ·
- Self-citation rate
- 28.6%LetPub ·
- Share of gold OA articles
- 34.29%LetPub ·
Volume
- Articles per year
- 94LetPub ·
- Downloads per year (publisher) 2025
- 151,800Publisher website ·
Articles by year OpenAlex count · 4,344 in total · the current year is incomplete
| Year | Articles | Open access | Citations |
|---|---|---|---|
| 2026 | 68 | 41 | 8 |
| 2025 | 106 | 54 | 36 |
| 2024 | 93 | 45 | 88 |
| 2023 | 68 | 28 | 127 |
| 2022 | 89 | 36 | 252 |
| 2021 | 94 | 49 | 290 |
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.
Review & acceptance
Review time and acceptance
Review time from article dates manuscript dates registered with Crossref · to
186 daysMedian, submission to acceptance · P25–P75 123 days – 276 days
- Acceptance to online
- median 23 days (88 articles)
- Submission to online
- median 218 days
- Sample
- 86 articles with submission and acceptance dates (200 in the window); the latest was accepted on
Only articles that were accepted and published are counted, not the time spent on rejected manuscripts, so this usually runs longer than a publisher's "time to first decision".
Other sources
- Average review time (community reports)
- about 12 monthsLetPub ·
- Average acceptance (community reports)
- EasyLetPub ·
- Peer review
- Double anonymous peer reviewPublisher website
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.
Fees & open access
APC and open-access policy
Hybrid open accessLetPub
A subscription journal in which authors can pay to publish their article open access.
| Source | APC | Fee waiver | License | Observed |
|---|---|---|---|---|
| OpenAlex | USD 3,090 / EUR 2,490 / GBP 2,190 | — | — |
A hybrid journal charges the APC only when the author chooses open access; publishing under the subscription model is usually free.
The journal's website is authoritative for fees; sources were observed at different times and each keeps its own value, without averaging.
Submission
Article types and submission policies (journal website)
What to prepare4 items from the author guidelines
- Abstract
- 150–250 words
- Keywords
- ≥ 4
- Reference style
- Numbered, in order of citation
- Templates
- LaTeX and Word
Policy excerpts from the journal's websiteAI use, Authorship, Conflicts of interest, Data availability, License & copyright, Open access
- AI use Generative AI Images
Please check Springer’s policy on generative AI images and make sure your work adheres to the principles described therein. Back to top
Source ↗Publisher website ·- Authorship Authorship principles
These guidelines describe authorship principles and good authorship practices to which prospective authors should adhere to. Authorship clarified The Journal and Publisher assume all authors agreed with the content and that all gave explicit consent to submit and that they obtained consent from the responsible authorities at the institute/organization where the work has been carried out, before th…
Source ↗Publisher website ·- Conflicts of interest Disclosures and declarations
All authors are requested to include information regarding sources of funding, financial or non-financial interests, study-specific approval by the appropriate ethics committee for research involving humans and/or animals, informed consent if the research involved human participants, and a statement on welfare of animals if the research involved animals (as appropriate). The decision whether such …
Source ↗Publisher website ·- Data availability Data availability statements
All original research must include a data availability statement. This statement should explain how to access data supporting the results and analysis in the article, including links/citations to publicly archived datasets analysed or generated during the study. Please see our full policy here. If it is not possible to share research data publicly, for instance when individual privacy could be com…
Source ↗Publisher website ·- License & copyright Copyright
Open Choice articles do not require transfer of copyright as the copyright remains with the author. In opting for open access, the author(s) agree to publish the article under a Creative Commons license. Details of the OA licences offered to authors can be found on the individual journal website, in the journal's How to publish with us guide. Back to top
Source ↗Publisher website ·- Open access Open access publishing
To find out more about publishing your work Open Access in Semigroup Forum, including information on fees, funding and licences, visit our Open access publishing page. Back to top
Source ↗Publisher website ·
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.
Profile
Publication details and official links
- Publisher
- Springer US
- Country or region
- GERMANY
- Language
- Multi-Language
- Frequency
- Bimonthly
- Founded
- 1970
- ISSN
- 0037-1912
- Electronic ISSN
- 1432-2137
- Latest issue on the website
- Volume 113, Issue 1 (August 2026)
- Official links
- Journal homepage ↗OpenAlex
- Submission system ↗Publisher website
- Author guidelines ↗LetPub
FAQ
Frequently asked questions about Semigroup Forum
What CAS zone is Semigroup Forum in?
In the 2025 upgraded edition of the CAS Journal Ranking, Semigroup Forum is in Zone 3 of Mathematics, and in Zone 3 of the minor category Mathematics. In the 2026 Xinrui edition it is in Zone 3 of Mathematics. Zones from different editions, and from major and minor categories, are not interchangeable.
What is the impact factor of Semigroup Forum?
The latest impact factor listed by LetPub is 0.7; CiteScore 1.2, h-index 60.
How long does peer review take at Semigroup Forum?
Based on the dates recorded on 86 articles published between October 2024 and October 2026 (the last 24 months), the median time from submission to acceptance is 186 days (interquartile range 123–276 days); authors report an average review time of about 12 months; the community-reported acceptance is “Easy”. Article statistics cover accepted papers only, publisher figures follow the journal's own definitions, and community reports come from authors' own submissions; none is a promise from the journal.
What are the manuscript requirements of Semigroup Forum?
According to the journal's author guidelines: Abstract: 150–250 words; Keywords: ≥ 4; Reference style: Numbered, in order of citation; Templates: LaTeX and Word. A model extracted these from the author guidelines and each was checked against the text; check the latest version on the journal's website before submitting.
Where are the editorial board members of Semigroup Forum based?
Of the 34 board members whose country the journal's board page names, none are in mainland China; the countries named most often are United States (7), United Kingdom (4) and Germany (3). Counted from the institutions listed on the board page; for reference only.
Which databases index Semigroup Forum?
According to LetPub and DOAJ records, Semigroup Forum is indexed in SCIE and Scopus. The journal's website also lists zbMATH; that list has not been checked against each database.
Is Semigroup Forum open access, and what is the APC?
Semigroup Forum is a hybrid journal. For open-access publication: APC about USD 3,090.
Sources and updates
The facts on this page come from LetPub, OpenAlex, Publisher website; every figure is tagged with its source and the date it was observed, and conflicting values are kept per source. LetPub source page: view ↗ (archived 2026-08-26). Last updated: .