Homeβ€ΊSearchβ€ΊIntegral Equations and Operator Theory

Integral Equations and Operator Theory

Birkhauser Verlag Basel Β· Switzerland Β· Est. 1978

ISSN1420-8989
SJR Q2βœ“ WOS SCIEβœ“ Scopus / SJR
90
/ 100
High Trust
PubScope credibility score from verifiable indexing & ethics signals
Score Breakdown
β—† WoS flagship (SCIE/SSCI/AHCI)78
βœ“ Corroboration (2 more)+12
Total90
Level data: Norwegian Register (HK-dir), NLOD 2.0. Β· Third-party records Β· how this is calculated Β· Report an error β†’
⚑ Speed vs Prestige
How does this journal balance review speed with impact level?
225
days submission β†’ published
measured Β· last 20 articles Β· accept 188d
Q2
SJR Rank
Top 50% in field
Impact Factor & Quartile Β· Web of Science (JCR)

βœ“ Indexed in the Web of Science Core Collection (SCIE) β€” Clarivate publishes an official Journal Impact Factor and JCR quartile for this journal.

See the official Impact Factor & quartile on the journal’s page β†—

The Impact Factor & JCR quartile are licensed by Clarivate β€” we link you to the official source instead of reprinting a number that can go out of date. Open metrics below: SCImago Q2. Source: Clarivate Journal Citation Reports.

SJR Scorei
0.578
H-Indexi
78
CiteScore
ViewΒ β†—
Scopus metric Β· on the journal’s page
SNIPi
1.271
Total Worksi
3,111
Total Citationsi
45,447
2yr Mean Citednessi
0.89
Open Impact Factor alternative

Aims & Scope

Integral Equations and Operator Theory focuses on publishing original research papers in operator theory and in areas where operator theory plays a key role, such as integral equations and differential equations. Welcomes new significant developments in operator theory. Emphasizes the linear aspects of the theory. Includes fruitful interactions of operator theory with applications and other areas of mathematics. Publishes high quality research papers as well as challenging open problems. Features a very high percentage of authors intending to publish in the journal again.

General Information

Country / RegionSwitzerland
Primary LanguageEnglish
1st Year Published1978
FrequencyBimonthly, 2018-
StatusActive (last: 2026)
Total Publications3,111
Publisher OrgBirkhΓ€user
Visit Journal Website

Submission Info

Peer Reviewβ€”
Review Timeβ€”
Acceptance Rateβ€”
OA Licenseβ€”
OA Rateβ€”

Ethics & Quality

COPE Memberβœ— No
OASPA Memberβœ— No
Not on Predatory Listsβœ“ Yes

Think.Check.Submit Compliance

6/12 Β· 50%
βœ…
Do you know the journal / publisher?
Birkhauser Verlag Basel
βœ…
Does the journal have a website?
βœ“ Linked
βœ…
Is the ISSN verified?
1420-8989
βœ…
Indexed in a trusted database?
WoS, Scopus
❌
Peer review process documented?
N/A
❌
Follows ethical publishing standards (COPE)?
N/A
❌
APC fees clearly disclosed?
N/A
βœ…
Not on predatory/blacklists?
βœ“ Clean
❌
Long-term digital preservation?
N/A
❌
Plagiarism detection in place?
N/A
❌
Listed in DOAJ (verified OA)?
N/A
βœ…
Primary language documented?
English

Based on the Think.Check.Submit framework by DOAJ, COPE & OASPA. All data from verified open sources.

Publication & Citation Trend

Articles published
Citations received
59
288
2019
54
196
2020
67
237
2021
41
124
2022
28
73
2023
39
64
2024
29
19
2025
26
0
2026

Source: OpenAlex Β· Each year’s green bar = citations earned by that year’s papers, counted to date β€” so recent years look lower simply because their papers haven’t had time to be cited yet.

SJR Quartile by Discipline

Scimago ranks this journal separately in each subject category β€” its quartile can differ by discipline.

Algebra and Number TheoryQ2
AnalysisQ2

Subject Classification

Web of Science Categories

Mathematics

Scopus Categories

AnalysisAlgebra and Number Theory

Research Topics (OpenAlex)

Holomorphic and Operator TheorySpectral Theory in Mathematical PhysicsAdvanced Topics in AlgebraAlgebraic and Geometric AnalysisMatrix Theory and AlgorithmsAdvanced Operator Algebra ResearchAdvanced Banach Space TheoryAdvanced Harmonic Analysis ResearchNumerical methods in inverse problemsMathematical Analysis and Transform Methods

Frequently asked questions about Integral Equations and Operator Theory

Is Integral Equations and Operator Theory a predatory journal?

PubScope has no integrity flags on record for Integral Equations and Operator Theory: it is indexed in Web of Science, Scopus, and is not on DOAJ's withdrawn list. Its PubScope Trust Score is 90/100. Indexing is a transparency signal, not a guarantee β€” always confirm fit and policies before submitting.

What is the impact factor of Integral Equations and Operator Theory?

Integral Equations and Operator Theory is indexed in the Web of Science Core Collection, so Clarivate publishes an official Journal Impact Factor for it (since the 2023 Journal Citation Reports, every Core Collection journal β€” including Arts & Humanities and Emerging Sources titles β€” receives one). PubScope links to Clarivate's official source rather than reprinting the number, which can be out of date. Its open 2-year mean citedness is 0.89.

Is Integral Equations and Operator Theory indexed in Scopus and Web of Science?

Integral Equations and Operator Theory is indexed in Web of Science, Scopus.

What is the aims and scope of Integral Equations and Operator Theory?

Integral Equations and Operator Theory focuses on publishing original research papers in operator theory and in areas where operator theory plays a key role, such as integral equations and differential equations. Welcomes new significant developments in operator theory. Emphasizes the linear aspects of the theory. Includes fruitful interactions of operator theory with applications and other areas of mathematics. Publishes high quality research papers as well as challenging open problems. Features a very high percentage of authors intending to publish in the journal again.

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How to tell if a journal is predatoryWhat Q1–Q4 quartiles meanWeb of Science vs Scopus vs DOAJWhat is an APC?

Data updated: 2026-05-22 Β· Sources: SJR, DOAJ, OpenAlex, WoS, Crossref