Journal profile · Mathematics
Electronic Journal of Qualitative Theory of Differential Equations
ISSN 1417-3875 · University of Szeged · HUNGARY · Irregular
Electronic Journal of Qualitative Theory of Differential Equations: CAS Zone 4 · Mathematics (2025 upgraded edition); impact factor 0.73; diamond open access (no APC); no APC; review about 3 months (community reports); community-reported acceptance: easy; 80 articles in 2025; indexed in SCIE and Scopus.
Scope
Aims, scope and focus
Electronic Journal of Qualitative Theory of Differential Equations is published by University of Szeged 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 Nonlinear Differential Equations Analysis, Differential Equations and Numerical Methods and Advanced Mathematical Modeling in Engineering, together about 39.7% of its articles. Its main subfields are Applied Mathematics. (generated from OpenAlex topic counts and CAS ranking data)
All topics related to the qualitative theory (stability, periodicity, boundedness, etc.) of differential equations (ODE's, PDE's, integral equations, functional differential equations, etc.) and their applications will be considered for publication.
From the journal's Aims & Scope
Research area (LetPub): Mathematics
Editor-in-chief Tibor KrisztinPublisher website
Main research topics OpenAlex counts of recent articles; shares are approximate
- Nonlinear Differential Equations AnalysisMathematics19.5%
- Differential Equations and Numerical MethodsMathematics11.3%
- Advanced Mathematical Modeling in EngineeringComputer Science8.9%
- Nonlinear Partial Differential EquationsMathematics8.6%
- Differential Equations and Boundary ProblemsMathematics8.5%
- Stability and Controllability of Differential EquationsEngineering7.4%
- Mathematical and Theoretical Epidemiology and Ecology ModelsMedicine4.9%
- Fractional Differential Equations SolutionsMathematics4.8%
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 | Mathematics | Zone 4 |
| Minor | Mathematics, Applied | Zone 4 |
Top journal: noReview journal: no
CAS Xinrui Journal Ranking (March 2026)Mathematics Zone 4
| Level | Category | Zone |
|---|---|---|
| Major | Mathematics | Zone 4 |
| Minor | Mathematics, Applied | Zone 4 |
| Minor | Mathematics | Zone 4 |
Top journal: noReview journal: not marked
CAS Journal Ranking, previous upgraded edition (December 2023)Mathematics Zone 4
| Level | Category | Zone |
|---|---|---|
| Major | Mathematics | Zone 4 |
| Minor | Mathematics | Zone 4 |
| Minor | Mathematics, Applied | Zone 4 |
Top journal: noReview journal: no
Database indexing
SCIEScopusDOAJLetPub
International journal early-warning lists: not listed in any editionLetPub
Indexing the journal's website claims
MathSciNetzbMATHCurrent ContentsPublisher website
Other: EBSCO, Journal Citation Reports
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
- 0.73LetPub ·
- Impact factor (publisher)
- 0.7Publisher website ·
- CiteScore 2026-06
- 1LetPub ·
- SJR 2026-06
- 0.3LetPub ·
- SNIP 2026-06
- 0.64LetPub ·
- h-index
- 27LetPub ·
- h-index
- 42OpenAlex ·
- i10-index
- 381OpenAlex ·
- 2-year mean citedness
- 0.51OpenAlex ·
- Self-citation rate
- 14.3%LetPub ·
- Share of gold OA articles
- 100%LetPub ·
Volume
- Articles per year
- 79LetPub ·
Articles by year OpenAlex count · 1,796 in total · the current year is incomplete
| Year | Articles | Open access | Citations |
|---|---|---|---|
| 2026 | 47 | 47 | 3 |
| 2025 | 80 | 80 | 30 |
| 2024 | 78 | 78 | 71 |
| 2023 | 59 | 59 | 104 |
| 2022 | 70 | 70 | 131 |
| 2021 | 94 | 94 | 306 |
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
- Average review time (community reports)
- about 3 monthsLetPub ·
- Average acceptance (community reports)
- EasyLetPub ·
- Submission to publication (journal-reported)
- about 25 weeksDOAJ ·
- Peer review
- Single anonymous peer reviewDOAJ
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
Diamond open access (no APC)DOAJ
Every article is open access and authors pay no article processing charge.
| Source | APC | Fee waiver | License | Observed |
|---|---|---|---|---|
| DOAJ | No APC | No | CC BY | |
| LetPub | No APC | No | — | |
| Publisher website | No APC | — | — |
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 websiteAuthorship, License & copyright, Peer review
- Authorship
Editors will not consider more than two submissions per year by one person as author or co-author. Model summary
To guarantee the diversity of the topics in EJQTDE, in general, in any one year, Editors will not consider more than two submissions by one person as author or co-author.
Source ↗Publisher website ·- License & copyright
Creative Commons Attribution (CC BY) license applied to articles and other works. Model summary
EJQTDE applies the Creative Commons Attribution (CC BY) license to articles and other works we publish.
Source ↗Publisher website ·- Peer review
Pre-evaluation by Editorial Board followed by single-blind peer review by one or multiple referees. Model summary
Submitted papers are pre-evaluated by the Editorial Board and the ones deemed novel and interesting go through a single-blind peer review process by one or multiple referees.
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
- University of Szeged
- Country or region
- HUNGARY
- Language
- English
- Frequency
- Irregular
- ISSN
- 1417-3875
- Official links
FAQ
Frequently asked questions about Electronic Journal of Qualitative Theory of Differential Equations
What CAS zone is Electronic Journal of Qualitative Theory of Differential Equations in?
In the 2025 upgraded edition of the CAS Journal Ranking, Electronic Journal of Qualitative Theory of Differential Equations is in Zone 4 of Mathematics, and in Zone 4 of the minor category Mathematics / Mathematics, Applied. 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 Electronic Journal of Qualitative Theory of Differential Equations?
The latest impact factor listed by LetPub is 0.73; CiteScore 1, h-index 42.
How long does peer review take at Electronic Journal of Qualitative Theory of Differential Equations?
Authors report an average review time of about 3 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.
Which databases index Electronic Journal of Qualitative Theory of Differential Equations?
According to LetPub and DOAJ records, Electronic Journal of Qualitative Theory of Differential Equations is indexed in SCIE, Scopus and DOAJ. The journal's website also lists MathSciNet, zbMATH and Current Contents; that list has not been checked against each database.
Is Electronic Journal of Qualitative Theory of Differential Equations open access, and what is the APC?
Electronic Journal of Qualitative Theory of Differential Equations is a diamond open-access journal (no APC). It charges no article processing charge.
Sources and updates
The facts on this page come from LetPub, OpenAlex, Publisher website, DOAJ; 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: .