What is the Impact Factor of Complex Analysis and Operator Theory?

According to the latest Clarivate Journal Citation Reports (JCR), the Journal Impact Factor of Complex Analysis and Operator Theory is 1.00, ranking in quartile Q2 of Web of Science (SCIE).

Is Complex Analysis and Operator Theory indexed in Web of Science or Scopus?

Yes, Complex Analysis and Operator Theory is indexed in Web of Science (SCIE, Q2 quartile). Furthermore, in Scopus (SCImago), it holds an SJR rating of 0.515 (Q2) and an H-index of 32.

Who publishes Complex Analysis and Operator Theory and what is the Article Processing Charge (APC)?

Complex Analysis and Operator Theory is published by Springer International Publishing. The estimated Article Processing Charge (APC) is approximately $2,987 USD, subject to institutional waivers and corresponding author affiliations.

What is the ISO-4 abbreviation and acronym of Complex Analysis and Operator Theory?

The official ISO-4 abbreviation of Complex Analysis and Operator Theory is "COMPLEX ANAL. OPER. THEORY" with common acronym "caot". This standardized title abbreviation is used in citation lists conforming to IEEE, APA, Harvard, or Vancouver styles.

WoS SCIE Q2Scopus Q2SCImago #11,554Hybrid

Complex Analysis and Operator Theory

Acronym:caot

•

Abbreviation (ISO):COMPLEX ANAL. OPER. THEORY

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Identifier (ISSN):1661-8254(Print)/1661-8262(Online)

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Publisher:Springer International Publishing

Official Website Submission Portal Compare

Clarivate IF (2026)

1↑ +0.2

Journal Impact Factor

IF Trend↓

WoS Quartile

WoS SCIEJCR Quartile

Clarivate WoS JCR

WoS Categories↓

JCR Release Date: 2026-06-17

Impact Factor Trend (2018–2026)

Clarivate IF trend for Complex Analysis and Operator Theory

WoS Q2

Annual Impact Factor Metric

Current (2026):1

Scopus SJR & RankScopus Q2

0.515

#11,554

SCImago Journal Rank citation prestige weighting

Scopus Year: 2025

H-Index (2025)

32 papers with at least that number of citations each

WoS: SCIE / JCRQ2

Self-Citation Rate14.3%

Safe Level (< 15%)Warning Level (> 20%)

Self-citation below 15% indicates strong scholarly independence.

Volume & Open AccessHybrid

122articles/year

17.24% Gold OA•100% Original Research

Aims & Scope

Complex Analysis and Operator Theory (CAOT) is devoted to the publication of current research developments in the closely related fields of complex analysis and operator theory as well as in applications to system theory, harmonic analysis, probability, statistics, learning theory, mathematical physics and other related fields. Articles using the theory of reproducing kernel spaces are in particular welcomed.

Topics Covered (Recognized by AI)

Mathematics97.2%Mathematical analysis93.5%Pure mathematics93.2%Discrete mathematics78.3%Physics68%Operator theory64.7%Quantum mechanics60.2%Computer science50%Combinatorics47.4%Biology42.3%Philosophy37.1%Chemistry34.4%Geometry33.9%Genetics32.7%Biochemistry28.6%Algebra over a field27.3%Gene26.7%Linguistics25.8%Transcription factor23.2%Gene expression23.2%Repressor23.2%Operator (biology)23.2%Bounded function22.1%

Primary Research Areas

Mathematics

Official Website NLM PubMed Catalog Submission Portal SCImago Profile

0 calls

Special Issues

Calls for Papers

No active Calls for Papers found for this journal.

Expand

WoS Categories & Quartiles

Detailed JCR / JCI category rankings and quartile breakdown from Clarivate

Clarivate JCR & JCI

JCRSCIE2026

MATHEMATICS

Rank161/492

IndexSCIE

JCRSCIE2026

MATHEMATICS, APPLIED

Rank206/345

IndexSCIE

JCISCIE2026

MATHEMATICS

Rank209/492

IndexSCIE

JCISCIE2026

MATHEMATICS, APPLIED

Rank178/345

IndexSCIE

Category	Index	Rank	Quartile
MATHEMATICS	JCRSCIE	161/492	Q2
MATHEMATICS, APPLIED	JCRSCIE	206/345	Q3
MATHEMATICS	JCISCIE	209/492	Q2
MATHEMATICS, APPLIED	JCISCIE	178/345	Q3

Annual Historical Statistics & Publications

Track annual publication volume, total citations, and Impact Factor evolution

12 year

2026Latest

IF1

Articles / Year82

Total Citations5

2025

IF0.8

Articles / Year245

Total Citations228

2024

IF0.7

Articles / Year187

Total Citations293

2023

IF0.8

Articles / Year134

Total Citations346

2022

IF0.819

Articles / Year127

Total Citations383

Year	Impact Factor	Articles / Year	Total Citations
2026	1	82	5
2025	0.8	245	228
2024	0.7	187	293
2023	0.8	134	346
2022	0.819	127	383
2021	0.843	124	305
2020	0.739	102	448
2019	0.711	76	371
2018	0.799	121	754
2017	—	126	722
2016	—	109	918
2015	—	80	490

SCImago & Scopus Journal Intelligence

Global SCImago ranking, SJR prestige index, Scopus coverage, and societal policy impact

Rank #11,554Scopus Q2SCImago Profile

Scopus Coverage:2007-2026

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Scopus Broad Areas:Computer ScienceMathematics

Scopus Citation Rank (SJR)Q2

0.515

Weighted prestige citation metric per document indexed in the Scopus database.

Quartile: Scopus Q2

Citations / Doc (2 years)

1.02

Average citations received per document published in the 2-year window.

2-Year Citation Window

Estimated Publication Fee (APC)

$2,987 USD

Estimated Article Processing Charge for Open Access publication.

Estimated cost / article

Scopus 3-Year Publication & Citation Window

3-Year Citations469

3-Year Documents458

Citable Documents458

Aggregated from Scopus database across the 3-year SJR evaluation window.

Societal Impact & Inclusivity (SCImago)

Policy Citations (Overton)0

Citations in government and international policy documents

Female Author Rate26.4%

Percentage of female authors published in the journal

Real-world societal policy reach and author gender diversity tracked by SCImago.

Scopus Subject Categories

Applied MathematicsQ2

Computational MathematicsQ2

Computational Theory and MathematicsQ2

Academic Metric Intelligence

Journal Metrics & Citation Visualizations

Total Cites vs Self-Cites

Evaluation of scholarly independence and citation reach

Total citations steady growth

Self-citation: 14.3%

Citations per Document

Citation metric windows across 2, 3, and 4 years

Cites / Doc (4 years)Cites / Doc (3 years)Cites / Doc (2 years)

Chinese Academy of Sciences (CAS) Classification

Major / minor zone classification and CAS Early Warning List history

Major Category (Broad Field):

3区 (Zone 3)Mathematics

Minor Category (Specific Field):

3区MATHEMATICS, APPLIED

CAS Early Warning List History:

Updated annually: 2020 – 2024

2020

Not warned

2021

Not warned

2022

Not warned

2023

Not warned

2024

Not warned

Academic Intelligence Overview & Context

ImpaQ Analysis

Complex Analysis and Operator Theory (acronym: caot, abbr: COMPLEX ANAL. OPER. THEORY, ISSN: 1661-8254) is a peer-reviewed international scholarly journal in the field of Mathematics, published by Springer International Publishing in Switzerland since 2007. The periodical holds a Journal Impact Factor (JIF) of 1.00, ranking in quartile Q2 of Web of Science (SCIE), a Scopus SJR indicator of 0.515 (Q2), an H-index of 32.

The journal enforces rigorous peer evaluation with a publication frequency of Quarterly, an annual output of approximately 122 scientific articles. In terms of accessibility and author fees, it operates under the Hybrid model with an estimated APC of $2,987 USD. It serves as a benchmark publication platform for academics, researchers, and doctoral candidates seeking global research visibility.