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Complex Analysis and Operator Theory is Scopus-indexed (Q3, CiteScore 1.3), WoS SCIE. It is covered by India's One Nation One Subscription scheme for reading access. Published by Springer International Publishing.
Checked against the index lists dated .
ISSN 1661-8254Verify ISSN ↗1661-8262Verify ISSN ↗
Publisher: Springer International Publishing
Cost to publish: About US$3,090 to publish open access (publisher list price, via OpenAlex) — subscription publishing may be free
| Subject area | Rank | Pctile | Q |
|---|---|---|---|
| Applied Mathematics | 463 / 680 | 31st | Q3 |
| Computational Mathematics | 145 / 212 | 31st | Q3 |
| Computational Theory and Mathematics | 147 / 203 | 27th | Q3 |
Not listed in: DOAJ, ABDC, ABS / AJG, FT50, UT Dallas, ONOS (APC covered)
Yes — actively indexed in Scopus, coverage 2007–present, best quartile Q3, CiteScore 1.3.
Complex Analysis and Operator Theory is Q3 in Applied Mathematics (rank 463 of 680), Q3 in Computational Mathematics (rank 145 of 212) and Q3 in Computational Theory and Mathematics (rank 147 of 203), by CiteScore 2025.
Complex Analysis and Operator Theory is indexed in the Science Citation Index Expanded, so it may have a Journal Impact Factor in Clarivate's Journal Citation Reports. JCR is paid, so check it for the current value. The closest free measure is its Scopus CiteScore 1.3, which places it in quartile Q3 at the 31st percentile of its subject. Its SCImago Journal Rank (SJR, a free Scopus-based metric) is 0.515, quartile Q2, with an H-index of 32.
The publisher lists an article processing charge of about US$3,090 for open access (source: OpenAlex). Many journals also publish by the subscription route at no cost to the author, so confirm on the journal's own website.
Complex Analysis and Operator Theory is published by Springer International Publishing. Its print ISSN is 1661-8254 and its online ISSN is 1661-8262.
Yes. It is part of the One Nation One Subscription (ONOS) national subscription, so readers at participating Indian institutions get its full text. ONOS does not cover its article processing charge.
Yes — indexed in the Science Citation Index Expanded.
No — it is not registered as an open-access journal in DOAJ or Scopus.
Complex Analysis and Operator Theory has an h-index of 34 and a 2-year mean of 1.15 citations per paper (OpenAlex). Its Scopus CiteScore is 1.3, quartile Q3. On 2-year citations it ranks #297 of 621 Scopus journals in Applied Mathematics.
Complex Analysis and Operator Theory published 244 papers in 2025. 2026* is the year so far.
h-index, i10-index and 2-year mean citedness are open, licence-clear metrics from OpenAlex — not a proprietary impact factor. The subject rank counts only journals that OpenAlex has a figure for; it is not a Scopus or Clarivate ranking. Updated 2026-10-14.
In its latest 97 research articles (2026), authors are most often from India (19.1%), China (11.2%) and United States (7.6%).
Countries are counted fractionally, so a paper by authors from two countries counts half to each.
Scopus status: Active. 1 retracted paper is recorded (0.5 per 1,000 papers). The Problematic Paper Screener flags none of its papers. These are indicators to check, not findings against the journal.
Retractions from OpenAlex; flags from the Problematic Paper Screener (Cabanac, Labbé & Magazinov, CC BY), 2026-09-21 export. A flag marks a paper for a closer look; it is not a finding against the journal.
Index data is curated from public sources (Scopus, Web of Science, ABDC, FT50, UT Dallas, DOAJ). CiteScore and quartiles reflect the latest available Scopus release. Always verify a journal's current status on its official source before submitting.
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