Journal of Operator Theory

Aims & Scope

The Journal of Operator Theory is rigorously peer reviewed and endevours to publish significant articles in all areas of operator theory, operator algebras and closely related domains.

View Aims & Scope

---

Metrics & Ranking

Impact Factor

Year	Value
2025	1
2024	0.70

SJR (SCImago Journal Rank)

Year	Value
2024	0.746

Quartile

Year	Value
2024	Q1

h-index

Year	Value
2024	42

---

---

Abstracting & Indexing

Journal is indexed in leading academic databases, ensuring global visibility and accessibility of our peer-reviewed research.

• Scopus
• Google Scholar
• Web of Science

---

Subjects & Keywords

Journal’s research areas, covering key disciplines and specialized sub-topics in Mathematics, designed to support cutting-edge academic discovery.

---

Most Cited Articles

The Most Cited Articles section features the journal's most impactful research, based on citation counts. These articles have been referenced frequently by other researchers, indicating their significant contribution to their respective fields.

• Journal of Operator Theory

  Citation: 46

  Authors:

• KMS states on the $C^*$-algebras of non-principal groupoids

  Citation: 35

  Authors: Sergey

• Weighted shifts and disjoint hypercyclicity

  Citation: 31

  Authors: Juan, Ozgur, Rebecca

• Spectral multiplier theorems of Hormander type on Hardy and Lebesgue spaces

  Citation: 30

  Authors: Peer Christian, Matthias

• A canonical decomposition of complex symmetric operators

  Citation: 26

  Authors: Kunyu, Sen

• Asymmetric truncated Toeplitz operators and Toeplitz operators with matrix symbol

  Citation: 25

  Authors: M. Cristina, Jonathan

• Boundary representations and pure completely positive maps

  Citation: 23

  Authors: Craig

• On the Lie ideals of $\Cstar$-algebras

  Citation: 22

  Authors: Leonel

• Nuclearity related properties in operator systems

  Citation: 21

  Authors: Ali Samil

• A functional model for pure $\Gamma$-contractions

  Citation: 21

  Authors: Tirthankar, Sourav

---