Journal profile · MATHEMATICS, APPLIED-MATHEMATICS
Journal of Spectral Theory
ISSN 1664-039X · eISSN 1664-0403 · European Mathematical Society Publishing House · SWITZERLAND
Journal of Spectral Theory: CAS Zone 2 · Mathematics (2025 upgraded edition); impact factor 0.88; diamond open access (no APC); no APC; review about 82 weeks (community reports); 49 articles in 2025; indexed in SCIE and Scopus.
Scope
Aims, scope and focus
Journal of Spectral Theory is published by European Mathematical Society Publishing House 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 Spectral Theory in Mathematical Physics, Numerical methods in inverse problems and Advanced Mathematical Modeling in Engineering, together about 50.6% of its articles. Its main subfields are Mathematical Physics and Applied Mathematics. (generated from OpenAlex topic counts and CAS ranking data)
The Journal of Spectral Theory is devoted to the publication of research articles that focus on spectral theory and its many areas of application. The following list includes several aspects of spectral theory and also fields which feature substantial applications of (or to) spectral theory. Schrödinger operators, scattering theory and resonances; Eigenvalues: perturbation theory, asymptotics and inequalities; Quantum graphs, graph Laplacians; Pseudo-differential operators and semi-classical analysis; Random matrix theory; The Anderson model and other random media; Non-self-adjoint matrices and operators, including Toeplitz operators; Spectral geometry, including manifolds and automorphic forms; Linear and nonlinear differential operators, especially those arising in geometry and physics; Orthogonal polynomials; Inverse problems.
From the journal's Aims & Scope
Research area (LetPub): MATHEMATICS, APPLIED-MATHEMATICS
Editor-in-chief David DamanikPublisher website
Main research topics OpenAlex counts of recent articles; shares are approximate
- Spectral Theory in Mathematical PhysicsMathematics27.6%
- Numerical methods in inverse problemsMathematics11.7%
- Advanced Mathematical Modeling in EngineeringComputer Science11.3%
- Quantum chaos and dynamical systemsPhysics and Astronomy6.3%
- Matrix Theory and AlgorithmsComputer Science4%
- Nonlinear Partial Differential EquationsMathematics3.4%
- Advanced Mathematical Physics ProblemsMathematics3.1%
- Quantum Mechanics and Non-Hermitian PhysicsPhysics and Astronomy3.1%
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 |
| Minor | Mathematics, Applied | Zone 3 |
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 3
| Level | Category | Zone |
|---|---|---|
| Major | Mathematics | Zone 3 |
| Minor | Mathematics | Zone 3 |
| Minor | Mathematics, Applied | Zone 3 |
Top journal: noReview journal: no
Database indexing
SCIEScopusDOAJLetPub
International journal early-warning lists: not listed in any editionLetPub
Indexing the journal's website claims
Web of ScienceMathSciNetzbMATHPublisher website
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
- 0.88LetPub ·
- CiteScore 2026-06
- 1.7LetPub ·
- SJR 2026-06
- 0.95LetPub ·
- SNIP 2026-06
- 0.83LetPub ·
- h-index
- 11LetPub ·
- h-index
- 28OpenAlex ·
- i10-index
- 160OpenAlex ·
- 2-year mean citedness
- 1.42OpenAlex ·
- Self-citation rate
- 11.1%LetPub ·
- Share of gold OA articles
- 99.28%LetPub ·
Volume
- Articles per year
- 50LetPub ·
Articles by year OpenAlex count · 630 in total · the current year is incomplete
| Year | Articles | Open access | Citations |
|---|---|---|---|
| 2026 | 43 | 43 | 28 |
| 2025 | 49 | 49 | 33 |
| 2024 | 60 | 60 | 155 |
| 2023 | 58 | 58 | 168 |
| 2022 | 29 | 29 | 169 |
| 2021 | 56 | 56 | 304 |
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 82 weeksLetPub ·
- Submission to publication (journal-reported)
- about 82 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 |
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 websiteLicense & copyright, Open access, Peer review, Self-archiving
- License & copyright
Open access articles published under CC-BY 4.0 license. Model summary
Open access articles are published under the CC-BY 4.0 license.
Source ↗Publisher website ·- Open access Open Access
Subscribe to Open (S2O) journal; articles may be published open access with no author fees or article processing charges. Model summary
The Journal of Spectral Theory is a Subscribe to Open (S2O) journal, which means that articles may be published open access. There are no author fees or article processing charges associated with this model of open access. Open access articles are published under the CC-BY 4.0 license. The articles that are not published with proper open access, are granted the so-called green open access, meaning…
Source ↗Publisher website ·- Peer review Peer Review
Single blind peer review by external reviewers selected by the editorial board. Model summary
The Journal of Spectral Theory operates a single blind peer review process conducted by external reviewers selected by the editorial board.
Source ↗Publisher website ·- Self-archiving
Green open access: authors' final version may be posted in repositories without embargo; papers become freely accessible after five years. Model summary
The articles that are not published with proper open access, are granted the so-called green open access, meaning that the authors’ final version, not edited by the publisher yet, can be posted in institutional or other repositories, as well as on the authors’ institutional web pages without any embargo. These papers become freely accessible – but remain copyright protected – after five years.
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
- European Mathematical Society Publishing House
- Country or region
- SWITZERLAND
- Language
- English
- ISSN
- 1664-039X
- Electronic ISSN
- 1664-0403
- Official links
FAQ
Frequently asked questions about Journal of Spectral Theory
What CAS zone is Journal of Spectral Theory in?
In the 2025 upgraded edition of the CAS Journal Ranking, Journal of Spectral Theory is in Zone 2 of Mathematics, and in Zone 2 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 Journal of Spectral Theory?
The latest impact factor listed by LetPub is 0.88; CiteScore 1.7, h-index 28.
How long does peer review take at Journal of Spectral Theory?
Authors report an average review time of about 82 weeks. 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 Journal of Spectral Theory?
According to LetPub and DOAJ records, Journal of Spectral Theory is indexed in SCIE, Scopus and DOAJ. The journal's website also lists Web of Science, MathSciNet and zbMATH; that list has not been checked against each database.
Is Journal of Spectral Theory open access, and what is the APC?
Journal of Spectral Theory 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, DOAJ, 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: .