Overview
Complex Analysis and Operator Theory, published by Birkhäuser (Switzerland), published 816 papers in 2021–2025, and its papers received 1,728 citations in those years. Its h-index is 34 and its two-year mean citedness is 1.12. On the ITS Journal Score it ranks #12,064 of 62,158 ranked journals and #239 of 1,030 in Mathematics.
Key figures
Citations count every citation the journal's papers received in these years, including citations to older papers. Two-year mean citedness is OpenAlex's measure of how often recent papers are cited; it is similar in idea to, but not the same as, an impact factor.
Papers and citations by year
| Year | Papers | Citations received | Open-access papers |
|---|---|---|---|
| 2020 | 102 | 457 | 37 |
| 2021 | 124 | 319 | 54 |
| 2022 | 127 | 406 | 28 |
| 2023 | 134 | 378 | 34 |
| 2024 | 187 | 335 | 42 |
| 2025 | 244 | 290 | 46 |
What it publishes
The leading research topics of its papers (OpenAlex topic classification). Select a topic to find other journals that publish on it.
Similar journals
Ranked journals that publish on the same topics.
| Journal | Field | Score | Papers 2021–2025 | Open access |
|---|---|---|---|---|
| Integral Equations and Operator Theory | Mathematics | 59.0 | 203 | 53% |
| Advances in Applied Clifford Algebras | Mathematics | 61.3 | 319 | 28% |
| Computational Methods and Function Theory | Mathematics | 53.0 | 241 | 36% |
| Complex Analysis and its Synergies | Mathematics | 40.0 | 119 | 37% |
| Journal of Operator Theory | Mathematics | 58.1 | 223 | 27% |
| Operators and Matrices | Mathematics | 53.9 | 349 | 100% |
| Acta Scientiarum Mathematicarum | Mathematics | 50.3 | 233 | 29% |
| Complex Variables and Elliptic Equations | Mathematics | 56.4 | 606 | 13% |
Identity and sources
- ISSN-L: 1661-8254
- Print ISSN: 1661-8254
- Electronic ISSN: 1661-8262
- Publisher: Birkhäuser
- Listed in DOAJ: Not yet checked
- Crossref: ISSN found in Crossref
- OpenAlex: S37268045
- Journal website: www.springer.com
Figures come from OpenAlex (papers, citations, h-index, topics), Crossref (ISSN check) and DOAJ (open-access listing and fees). They change as records are corrected, so treat them as a dated snapshot. This page does not state whether the journal is indexed in Scopus, Web of Science or PubMed.
Questions
What is the ITS Journal Score of Complex Analysis and Operator Theory?
It is 61.3 out of 100, which places it #12,064 among ranked journals. The score combines citation impact (45%), h-index (35%) and size (20%) from open OpenAlex data.
What is the impact factor of Complex Analysis and Operator Theory?
This site does not publish Journal Impact Factors, which belong to Clarivate. As an open alternative, its two-year mean citedness in OpenAlex is 1.12.
Is Complex Analysis and Operator Theory open access?
25% of its papers from 2021–2025 are recorded as open access.
Does Complex Analysis and Operator Theory charge a publication fee?
No fee is recorded in the open data used here. Check the journal's own website for its current fees.