Journal profile · Multiple
International Journal of Computer Mathematics- Computer Systems Theory
ISSN 2379-9927 · eISSN 2379-9935 · Taylor & Francis
International Journal of Computer Mathematics- Computer Systems Theory: CAS Zone 4 · Mathematics (2025 upgraded edition); impact factor 0.7 (journal website); subscription journal; APC about USD 2,390; median 253 days to acceptance (43 articles, last 24 months); acceptance rate 10% (journal website); 18 articles in 2025; indexed in ESCI and Scopus.
Scope
Aims, scope and focus
International Journal of Computer Mathematics- Computer Systems Theory is published by Taylor & Francis and is in Zone 4 of Mathematics in the CAS Journal Ranking (2025 upgraded edition). By OpenAlex counts of its recent articles, its largest topics are Advanced Graph Theory Research, Interconnection Networks and Systems and Graph theory and applications, together about 39.8% of its articles. (generated from OpenAlex topic counts and CAS ranking data)
International Journal of Computer Mathematics: Computer Systems Theory is a world-leading journal publishing work of exceptional quality and novelty that concerns research and development in computer systems and the theory of computing. The Journal has an intentionally broad scope and welcomes original research articles and reviews that directly and/or indirectly relate to specific fields of interest which include but are not limited to: analysis of algorithms applied computational algebra artificial intelligence automata the big data phenomenon bio-informatics brain-computer interfaces cloud computing computational complexity computational aspects of combinatorics and graph algorithmics computational geometry computer graphics computational logic computational mathematics computational number theory computer security cryptography data science and analytics data structures formal languages networks novel models of computation such as DNA and quantum computing parameterized complexity randomization semantics statistical learning theory symbolic computation theoretical computer science The Journal provides a forum for the expression of new ideas, as well as a place for exposition of these areas of knowledge. Papers considering applications and analysis of computational mathematics should be submitted to the sister Journal, International Journal of Computer Mathematics (IJCM). Review Papers Occasionally, review articles are solicited on current state-of-the-art research. Papers developed from Conference Proceedings Please note that papers developed from conference proceedings or previously published work must contain at least 40% new material and significantly extend or improve upon earlier research. Peer-Review Policy All submitted manuscripts are subject to initial appraisal by the Editor-in-Chief, and, if found suitable for further consideration, to rigorous and rapid peer review by independent, anonymous expert referees. All peer review is single-blind and submission is online via ScholarOne Manuscripts: https://mc.manuscriptcentral.com/commat Publishing Ethics The Journal adheres to the highest standards of publishing ethics, with rigorous processes in place to ensure this is achieved. Taylor & Francis is a member of Committee of Publications Ethics (COPE) and utilises CrossCheck for all Journals. More information on our ethical standards and policies can be found here: http://authorservices.taylorandfrancis.com/ethics-for-authors/ The Journal has an app
From the journal's Aims & Scope
Research area (LetPub): Multiple
Editor-in-chief E. ChengPublisher website
Main research topics OpenAlex counts of recent articles; shares are approximate
- Advanced Graph Theory ResearchComputer Science16.5%
- Interconnection Networks and SystemsComputer Science14%
- Graph theory and applicationsMathematics9.3%
- graph theory and CDMA systemsEngineering6.6%
- Graph Labeling and Dimension ProblemsComputer Science6.3%
- Coding theory and cryptographyComputer Science5.8%
- Cryptography and Data SecurityComputer Science4.7%
- Limits and Structures in Graph TheoryMathematics4.1%
Rankings & indexing
CAS ranking and database indexing
CAS Journal Ranking
CAS Journal Ranking, upgraded edition (March 2025)Mathematics Zone 4
| Level | Category | Zone |
|---|---|---|
| Major | Mathematics | Zone 4 |
| Minor | Computer Science, Theory & Methods | Zone 4 |
| Minor | Mathematics | Zone 4 |
Top journal: noReview journal: no
CAS Xinrui Journal Ranking (March 2026)Mathematics Zone 4
| Level | Category | Zone |
|---|---|---|
| Major | Mathematics | Zone 4 |
| Minor | Computer Science, Theory & Methods | Zone 4 |
| Minor | Mathematics | Zone 4 |
Top journal: noReview journal: not marked
CAS Journal Ranking, previous upgraded edition (December 2023)Not covered
Not covered by this edition.
Database indexing
ESCIScopusLetPub
International journal early-warning lists: not listed in any editionLetPub
Indexing the journal's website claims
Web of ScienceMathSciNetDBLPPublisher website
Other: Google Scholar, Baidu, Portico, Baidu Scholar, British Library Inside, Electronic Journals Library (EZB), Finnish Publication Forum (Julkaisufoorumi), Journal Citation Reports (JCR), SciBase, Ulrich's Periodicals Directory
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 (publisher) 2025
- 0.7Publisher website ·
- 5-year impact factor (publisher) 2025
- 0.7Publisher website ·
- CiteScore 2026-06
- 1.4LetPub ·
- CiteScore (publisher) 2025
- 1.4Publisher website ·
- SJR 2026-06
- 0.28LetPub ·
- SJR (publisher) 2025
- 0.28Publisher website ·
- SNIP 2026-06
- 0.65LetPub ·
- SNIP (publisher) 2025
- 0.65Publisher website ·
- h-index
- 12OpenAlex ·
- i10-index
- 18OpenAlex ·
- 2-year mean citedness
- 0.41OpenAlex ·
- Self-citation rate
- 14.3%LetPub ·
- Share of gold OA articles
- 0%LetPub ·
Volume
- Articles per year
- 17LetPub ·
- Articles per year (publisher)
- 3Publisher website ·
- Downloads per year (publisher)
- 5,000Publisher website ·
- Downloads per year (publisher) 2025
- 5,000Publisher website ·
Articles by year OpenAlex count · 216 in total · the current year is incomplete
| Year | Articles | Open access | Citations |
|---|---|---|---|
| 2026 | 26 | 5 | 0 |
| 2025 | 18 | 1 | 6 |
| 2024 | 22 | 0 | 21 |
| 2023 | 18 | 1 | 25 |
| 2022 | 11 | 2 | 48 |
| 2021 | 23 | 5 | 56 |
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
253 daysMedian, submission to acceptance · P25–P75 173 days – 502 days
- Acceptance to online
- median 34 days (43 articles)
- Submission to online
- median 285 days
- Sample
- 43 articles with submission and acceptance dates (46 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
- Acceptance rate (publisher)
- 10%Publisher website ·
- Acceptance rate (publisher) 2025
- 10%Publisher website ·
- Submission to first decision
- 11 daysPublisher website ·
- First decision after review
- 151 daysPublisher website ·
- Acceptance to publication
- 34 daysPublisher website ·
- Peer review
- Single 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
Subscription journalLetPub
A subscription journal: articles are read by subscription or purchase, and authors usually pay no publication charge.
| Source | APC | Fee waiver | License | Observed |
|---|---|---|---|---|
| Publisher website | USD 2,390 | — | — |
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)
Article types accepted2
- original research articleswelcomes original research articles and reviewsLength not stated
- review articleswelcomes original research articles and reviewsLength not stated
Policy excerpts from the journal's websitePublication ethics, Open access, Peer review
- Publication ethics
Member of COPE; uses CrossCheck Model summary
Taylor & Francis is a member of Committee of Publications Ethics (COPE) and utilises CrossCheck for all Journals.
Source ↗Publisher website ·- Open access Open access
International Journal of Computer Mathematics: Computer Systems Theory is a hybrid open access journal that is part of the Taylor & Francis Open Select publishing program, giving you the option to publish open access. Publishing open access means that your article will be free to access online immediately on publication, increasing the visibility, readership, and impact of your research. Why choos…
Source ↗Publisher website ·- Peer review
Single-blind peer review; submission via ScholarOne Manuscripts Model summary
All peer review is single-blind and submission is online via ScholarOne Manuscripts
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
- Taylor & Francis
- ISSN
- 2379-9927
- Electronic ISSN
- 2379-9935
- Latest issue on the website
- Volume 11, Issue 3 (2026)
- Official links
- Journal homepage ↗LetPub
- Submission system ↗Publisher website
- Special issues ↗Publisher website
FAQ
Frequently asked questions about International Journal of Computer Mathematics- Computer Systems Theory
What CAS zone is International Journal of Computer Mathematics- Computer Systems Theory in?
In the 2025 upgraded edition of the CAS Journal Ranking, International Journal of Computer Mathematics- Computer Systems Theory is in Zone 4 of Mathematics, and in Zone 4 of the minor category Computer Science, Theory & Methods / Mathematics. In the 2026 Xinrui edition it is in Zone 4 of Mathematics. Zones from different editions, and from major and minor categories, are not interchangeable.
What is the impact factor of International Journal of Computer Mathematics- Computer Systems Theory?
The journal's website gives an impact factor of 0.7 (2025); this is the journal's own figure, as LetPub lists none for it; CiteScore 1.4, h-index 12.
How long does peer review take at International Journal of Computer Mathematics- Computer Systems Theory?
Based on the dates recorded on 43 articles published between October 2024 and October 2026 (the last 24 months), the median time from submission to acceptance is 253 days (interquartile range 173–502 days); the journal's website gives an acceptance rate of 10% (2025). 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.
Which databases index International Journal of Computer Mathematics- Computer Systems Theory?
According to LetPub and DOAJ records, International Journal of Computer Mathematics- Computer Systems Theory is indexed in ESCI and Scopus. The journal's website also lists Web of Science, MathSciNet and DBLP; that list has not been checked against each database.
Is International Journal of Computer Mathematics- Computer Systems Theory open access, and what is the APC?
International Journal of Computer Mathematics- Computer Systems Theory is a subscription journal. APC about USD 2,390.
Sources and updates
The facts on this page come from LetPub, Publisher website, OpenAlex; 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 2026-08-25). Last updated: .