Journal profile · Mathematics
COMBINATORICA
ISSN 0209-9683 · eISSN 1439-6912 · Springer Berlin Heidelberg · GERMANY · Quarterly · Founded 1981
COMBINATORICA: CAS Zone 2 · Mathematics (2025 upgraded edition); impact factor 1.29; hybrid open access; APC about USD 3,290; median 356 days to acceptance (94 articles, last 24 months); community-reported acceptance: easy; 60 articles in 2025; indexed in SCIE and Scopus.
Scope
Aims, scope and focus
COMBINATORICA is published by Springer Berlin Heidelberg and is in Zone 2 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, Limits and Structures in Graph Theory and graph theory and CDMA systems, together about 46.4% of its articles. Its main subfields are Computational Theory and Mathematics. (generated from OpenAlex topic counts and CAS ranking data)
Honorary Founder: Pál Erdõs (1913-1996) COMBINATORICA is an international journal of the J. Bolyai Mathematical Society (Fõ utca 68., 1027 Budapest, Hungary), published jointly by the J. Bolyai Mathematical Society and Springer. COMBINATORICA publishes research papers in English in a variety of areas of combinatorics and the theory of computing, with particular emphasis on general techniques and unifying principles. Typical but not exclusive topics covered by COMBINATORICA are - Combinatorial structures (graphs, hypergraphs, matroids, designs, permutation groups). - Combinatorial optimization. - Combinatorial aspects of geometry and number theory. - Algorithms in combinatorics and related fields. - Computational complexity theory. - Randomization and explicit construction in combinatorics and algorithms.
From the journal's Aims & Scope
Research area (LetPub): Mathematics
Editor-in-chief József BaloghPublisher website
Editorial board by country: 1 in mainland China (about 3%); most named Hungary 18, United States 9, Israel 2, Mainland China 1, Hong Kong, China 1 (38 members with a country) Editorial board ↗Publisher website ·
Main research topics OpenAlex counts of recent articles; shares are approximate
- Advanced Graph Theory ResearchComputer Science20.6%
- Limits and Structures in Graph TheoryMathematics17.9%
- graph theory and CDMA systemsEngineering7.8%
- Graph theory and applicationsMathematics7.2%
- Graph Labeling and Dimension ProblemsComputer Science5.7%
- Complexity and Algorithms in GraphsComputer Science5.6%
- Advanced Topology and Set TheoryMathematics4.6%
- Finite Group Theory ResearchMathematics4%
Rankings & indexing
CAS ranking and database indexing
CAS Journal Ranking
CAS Journal Ranking, upgraded edition (March 2025)Mathematics Zone 2
| Level | Category | Zone |
|---|---|---|
| Major | Mathematics | Zone 2 |
| Minor | Mathematics | Zone 2 |
Top journal: noReview journal: no
CAS Xinrui Journal Ranking (March 2026)Mathematics Zone 2
| Level | Category | Zone |
|---|---|---|
| Major | Mathematics | Zone 2 |
| Minor | Mathematics | Zone 2 |
Top journal: yesReview journal: not marked
CAS Journal Ranking, previous upgraded edition (December 2023)Mathematics Zone 2
| Level | Category | Zone |
|---|---|---|
| Major | Mathematics | Zone 2 |
| Minor | Mathematics | Zone 2 |
Top journal: noReview journal: no
Database indexing
SCIEScopusLetPub
International journal early-warning lists: not listed in any editionLetPub
Indexing the journal's website claims
DBLPCurrent ContentsPublisher website
Other: Google Scholar, EBSCO, ProQuest, Dimensions, CNKI, Baidu, ACM Digital Library, 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
- 1.29LetPub ·
- Impact factor (publisher) 2025
- 1.3Publisher website ·
- 5-year impact factor (publisher) 2025
- 1.3Publisher website ·
- CiteScore 2026-06
- 2LetPub ·
- SJR 2026-06
- 1.55LetPub ·
- SNIP 2026-06
- 1.5LetPub ·
- h-index
- 47LetPub ·
- h-index
- 121OpenAlex ·
- i10-index
- 1,099OpenAlex ·
- 2-year mean citedness
- 1.06OpenAlex ·
- Self-citation rate
- 7.7%LetPub ·
- Share of gold OA articles
- 48.92%LetPub ·
Volume
- Articles per year
- 60LetPub ·
- Downloads per year (publisher) 2025
- 128700Publisher website ·
Articles by year OpenAlex count · 1,934 in total · the current year is incomplete
| Year | Articles | Open access | Citations |
|---|---|---|---|
| 2026 | 32 | 24 | 6 |
| 2025 | 60 | 45 | 34 |
| 2024 | 52 | 34 | 112 |
| 2023 | 75 | 47 | 344 |
| 2022 | 45 | 16 | 217 |
| 2021 | 42 | 33 | 310 |
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
356 daysMedian, submission to acceptance · P25–P75 231 days – 484 days
- Acceptance to online
- median 44 days (94 articles)
- Submission to online
- median 396 days
- Sample
- 94 articles with submission and acceptance dates (99 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)
- over 12 weeksLetPub ·
- Average acceptance (community reports)
- EasyLetPub ·
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 3,290 / EUR 2,790 / GBP 2,390 | — | — |
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)
Policy excerpts from the journal's websiteOpen access
- Open access Open access publishing
To find out more about publishing your work Open Access in Combinatorica, including information on fees, funding and licences, visit our Open access publishing page.
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 Berlin Heidelberg
- Country or region
- GERMANY
- Language
- English
- Frequency
- Quarterly
- Founded
- 1981
- ISSN
- 0209-9683
- Electronic ISSN
- 1439-6912
- Official links
- Journal homepage ↗OpenAlex
- Submission system ↗LetPub
- Author guidelines ↗LetPub
FAQ
Frequently asked questions about COMBINATORICA
What CAS zone is COMBINATORICA in?
In the 2025 upgraded edition of the CAS Journal Ranking, COMBINATORICA is in Zone 2 of Mathematics, and in Zone 2 of the minor category Mathematics. In the 2026 Xinrui edition it is in Zone 2 of Mathematics. Zones from different editions, and from major and minor categories, are not interchangeable.
What is the impact factor of COMBINATORICA?
The latest impact factor listed by LetPub is 1.29; CiteScore 2, h-index 121.
How long does peer review take at COMBINATORICA?
Based on the dates recorded on 94 articles published between October 2024 and October 2026 (the last 24 months), the median time from submission to acceptance is 356 days (interquartile range 231–484 days); authors report an average review time of over 12 weeks; 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.
Where are the editorial board members of COMBINATORICA based?
Of the 38 board members whose country the journal's board page names, 1 (about 3%) are in mainland China; the countries named most often are Hungary (18), United States (9) and Israel (2). Counted from the institutions listed on the board page; for reference only.
Which databases index COMBINATORICA?
According to LetPub and DOAJ records, COMBINATORICA is indexed in SCIE and Scopus. The journal's website also lists DBLP and Current Contents; that list has not been checked against each database.
Is COMBINATORICA open access, and what is the APC?
COMBINATORICA is a hybrid journal. For open-access publication: APC about USD 3,290.
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 2026-08-25). Last updated: .