Complex Analysis and Operator Theory
Birkhauser Verlag Basel · Switzerland · Est. 2006
✓ Indexed in the Web of Science Core Collection (SCIE) — Clarivate publishes an official Journal Impact Factor and JCR quartile for this journal.
See the official Impact Factor & quartile on the journal’s page ↗The Impact Factor & JCR quartile are licensed by Clarivate — we link you to the official source instead of reprinting a number that can go out of date.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.
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. The journal is organised in six sections, published in the form of topical collections: Higher Dimensional Geometric Function Theory and Hypercomplex Analysis Infinite-dimensional Analysis and Non-commutative Theory Linear Operators and Linear Systems Operator Theory and Harmonic Analysis Reproducing Kernel Spaces and Applications Spectral Theory and Operators in Mathematical Physics.
General Information
Submission Info
Ethics & Quality
Think.Check.Submit Compliance
A twelfth criterion — whether APC fees are clearly disclosed — is not scored here; it is left out of the total rather than counted as a failure. Publication charges appear in the metrics card above.
Based on the Think.Check.Submit framework by DOAJ, COPE & OASPA. All data from verified open sources.
Publication & Citation Trend
Source: OpenAlex · Each year’s green bar = citations earned by that year’s papers, counted to date — 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 — its quartile can differ by discipline.
Subject Classification
Web of Science Categories
Scopus Categories
Research Topics (OpenAlex)
Frequently asked questions about Complex Analysis and Operator Theory
Is Complex Analysis and Operator Theory a predatory journal?
PubScope has no integrity flags on record for Complex Analysis and Operator Theory: it is indexed in Web of Science, Scopus, and is not on DOAJ's withdrawn list. Indexing is a transparency signal, not a guarantee — always confirm fit and policies before submitting.
What is the impact factor of Complex Analysis and Operator Theory?
Complex Analysis 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 — including Arts & Humanities and Emerging Sources titles — 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 0.88.
Is Complex Analysis and Operator Theory indexed in Scopus and Web of Science?
Complex Analysis and Operator Theory is indexed in Web of Science, Scopus.
What is the aims and scope of Complex Analysis and Operator Theory?
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. The journal is organised in six sections, published in the form of topical collections: Higher Dimensional Geometric Function Theory and Hypercomplex Analysis Infinite-dimensional Analysis and Non-commutative Theory Linear Operators and Linear Systems Oper
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See all →Data updated: 2026-05-22 · Sources: SJR, DOAJ, OpenAlex, WoS, Crossref