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Journal of Operator Theory

Impact, Factor and Metrics, Impact Score, Ranking, h-index, SJR, Rating, Publisher, ISSN, and More

Last Updated on June 27, 2025

Impact Score

2024-2025

0.84

h-Index

2024-2025

 42

Rank

2024-2025

 7456

SJR

2024-2025

 0.746

Note: The impact score or impact index shown here is equivalent to the average number of times documents published in a journal/conference in the past two years have been cited in the current year (i.e., Cites / Doc. (2 years)). It is based on Scopus data and can be a little higher or different compared to the impact factor (IF) produced by Journal Citation Report. Please refer to the Web of Science data source to check the exact journal impact factor ™ (Thomson Reuters) metric.

Important Metrics and Factor

Title Journal of Operator Theory
Abbreviation J. Oper. Theory
Publication Type Journal
Subject Area, Categories, Scope Algebra and Number Theory (Q1)
h-index 42
Overall Rank/Ranking 7456
SCImago Journal Rank (SJR) 0.746
Impact Score 0.84
Publisher Theta Foundation
Country Romania
ISSN 3794024
Best Quartile Q1
Coverage History 1996-1998, 2000-2024




About Journal of Operator Theory


Journal of Operator Theory is a journal covering the technologies/fields/categories related to Algebra and Number Theory (Q1). It is published by Theta Foundation. The overall rank of Journal of Operator Theory is 7456. According to SCImago Journal Rank (SJR), this journal is ranked 0.746. SCImago Journal Rank is an indicator, which measures the scientific influence of journals. It considers the number of citations received by a journal and the importance of the journals from where these citations come. SJR acts as an alternative to the Journal Impact Factor (or an average number of citations received in last 2 years). This journal has an h-index of 42. The best quartile for this journal is Q1.

The ISSN of Journal of Operator Theory journal is 3794024. An International Standard Serial Number (ISSN) is a unique code of 8 digits. It is used for the recognition of journals, newspapers, periodicals, and magazines in all kind of forms, be it print-media or electronic. Journal of Operator Theory is cited by a total of 100 articles during the last 3 years (Preceding 2024).


Journal of Operator Theory Impact IF 2024-2025


The Impact IF 2024 of Journal of Operator Theory is 0.84, which is computed in 2025 as per its definition. Journal of Operator Theory IF is increased by a factor of 0.01 and approximate percentage change is 1.2% when compared to preceding year 2023, which shows a rising trend. The impact IF, also denoted as Journal impact score (JIS), of an academic journal is a measure of the yearly average number of citations to recent articles published in that journal. It is based on Scopus data.

Table Setting

Journal of Operator Theory Impact IF 2025 Prediction


Impact IF 2024 of Journal of Operator Theory is 0.84. If the same upward trend persists, Impact IF may rise in 2025 as well.


Impact IF Trend


Year wise Impact IF of Journal of Operator Theory. Based on Scopus data.


Year Impact IF
2025/2026 Coming Soon
2024 0.84
2023 0.83
2022 0.72
2021 0.85
2020 0.91
2019 0.67
2018 0.73
2017 0.55
2016 0.53
2015 0.51
2014 0.65

Journal of Operator Theory h-index


  Table Setting

Journal of Operator Theory has an h-index of 42. It means 42 articles of this journal have more than 42 number of citations. The h-index is a way of measuring the productivity and citation impact of the publications. The h-index is defined as the maximum value of h such that the given journal/author has published h papers that have each been cited at least h number of times.




Journal of Operator Theory ISSN


The ISSN of Journal of Operator Theory is 3794024. ISSN stands for International Standard Serial Number.

An ISSN is a unique code of 8 digits. It is used for the recognition of journals, newspapers, periodicals, and magazines in all kind of forms, be it print-media or electronic.

Table Setting

Journal of Operator Theory Rank and SCImago Journal Rank (SJR)


The overall rank of Journal of Operator Theory is 7456. According to SCImago Journal Rank (SJR), this journal is ranked 0.746. SCImago Journal Rank is an indicator, which measures the scientific influence of journals. It considers the number of citations received by a journal and the importance of the journals from where these citations come.

SJR of Journal of Operator Theory by Year


Year SJR
2025/2026 Coming Soon
2024 0.746
2023 0.545
2022 0.745
2021 0.806
2020 0.814
2019 0.804
2018 0.841
2017 0.861
2016 0.799
2015 0.895
2014 0.926

Ranking of Journal of Operator Theory by Year


Year Ranking
2025/2026 Coming Soon
2024 7456
2023 9931
2022 6564
2021 5675
2020 5910
2019 5879
2018 5527
2017 5322
2016 5855
2015 5138
2014 4815

Journal of Operator Theory Publisher


Table Setting

Journal of Operator Theory is published by Theta Foundation. It's publishing house is located in Romania. Coverage history of this journal is as following: 1996-1998, 2000-2024. The organization or individual who handles the printing and distribution of printed or digital publications is known as Publisher.


Call For Papers


Visit the official website of the journal/conference to check the further details about the call for papers.


Abbreviation


The IS0 4 standard abbreviation of Journal of Operator Theory is J. Oper. Theory. This abbreviation ('J. Oper. Theory') is well recommended and approved for the purpose of indexing, abstraction, referencing and citing goals. It meets all the essential criteria of ISO 4 standard.

ISO 4 (International Organization for Standardization 4) is an international standard that defines a uniform and consistent system for abbreviating serial publication titles and journals.


How to publish in Journal of Operator Theory


If your research field is/are related to Algebra and Number Theory (Q1), then please visit the official website of this journal.


Acceptance Rate


The acceptance rate/percentage of any academic journal/conference depends upon many parameters. Some of the critical parameters are listed below.

  • The demand or interest of researchers/scientists in publishing in a specific Journal/Conference.
  • Peer review complexity and timeline.
  • The mix of unsolicited and invited submissions.
  • The time it takes from manuscript submission to final publication.
  • And Many More.

It is essential to understand that the acceptance rate/rejection rate of papers varies among journals. Some Journals considers all the manuscripts submissions as a basis of acceptance rate computation. On the other hand, few consider the only manuscripts sent for peer review or few even not bother about the accurate maintenance of total submissions. Hence, it can provide a rough estimation only.

The best way to find out the acceptance rate is to reach out to the associated editor or to check the official website of the Journal/Conference.



Frequently Asked Questions (FAQs)


What's the latest impact IF of the Journal of Operator Theory?

Journal of Operator Theory latest impact IF is 0.84. It's evaluated in the year 2024. The highest and the lowest impact IF or impact score of this journal are 0.91 (2020) and 0.51 (2015), respectively, in the last 11 years. Moreover, its average IS is 0.71 in the previous 11 years.


What's the SCImago Journal Rank (SJR) of the Journal of Operator Theory?

The Journal of Operator Theory has an SJR (SCImago Journal Rank) of 0.746, according to the latest data. It is computed in the year 2025. In the past 11 years, this journal has recorded a range of SJR, with the highest being 0.926 in 2014 and the lowest being 0.545 in 2023. Furthermore, the average SJR of the Journal of Operator Theory over the previous 11-year period stands at 0.71.


What's the latest h-index of the Journal of Operator Theory?

The latest h-index of the Journal of Operator Theory is 42.


Who's the publisher of the Journal of Operator Theory?

The Journal of Operator Theory is published by the Theta Foundation, with its country of publication being the Romania.


What's the current ranking of the Journal of Operator Theory?

The Journal of Operator Theory is currently ranked 7456 out of 27955 Journals, Conferences, and Book Series in the latest ranking. Over the course of the last 11 years, this journal has experienced varying rankings, reaching its highest position of 4815 in 2014 and its lowest position of 9931 in 2023.


What's the abbreviation or short name for the Journal of Operator Theory?

The standard ISO4 abbreviation for the Journal of Operator Theory is J. Oper. Theory.


Is the "Journal of Operator Theory" classified as a Journal, Conference and Proceedings, Trade Journal or Book Series?

Journal of Operator Theory is classified as a journal that the Theta Foundation publishes.


What's the scope or major areas of the Journal of Operator Theory?

The Journal of Operator Theory encompasses the following areas:

  • Algebra and Number Theory

For a more comprehensive understanding of its scope, check the official website of this journal.


What's the ISSN of the Journal of Operator Theory?

The Journal of Operator Theory is assigned the following International Standard Serial Numbers (ISSN): 3794024.


What's the best quartile of the Journal of Operator Theory?

The best quartile for the Journal of Operator Theory is Q1 (2024).


What's the coverage history of the Journal of Operator Theory?

The Journal of Operator Theory coverage history can be summarized as follows: 1996-1998, 2000-2024.


Credits and Sources


  • Scimago Journal & Country Rank (SJR), https://www.scimagojr.com/
  • Journal Impact Factor, https://clarivate.com/



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Year wise Impact Score (IS) of Journal of Operator Theory

Impact Score Table

Year Impact Score (IS)
2025/2026 Coming Soon
2024 0.84
2023 0.83
2022 0.72
2021 0.85
2020 0.91
2019 0.67
2018 0.73
2017 0.55
2016 0.53
2015 0.51
2014 0.65



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