Scimago Journal & Country Rank

Journal of Operator Theory

Country

Romania

Universities and research institutions in Romania

Subject Area and Category

Publisher

Theta Foundation

H-Index

40

Publication type

Journals

ISSN

03794024

Coverage

1996-1998, 2000-2020

Information

Homepage

How to publish in this journal

bercovic@indiana.edu

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. Join the conversation about this journal
Quartiles

The set of journals have been ranked according to their SJR and divided into four equal groups, four quartiles. Q1 (green) comprises the quarter of the journals with the highest values, Q2 (yellow) the second highest values, Q3 (orange) the third highest values and Q4 (red) the lowest values.

CategoryYearQuartile
Algebra and Number Theory1999Q3
Algebra and Number Theory2000Q3
Algebra and Number Theory2001Q2
Algebra and Number Theory2002Q2
Algebra and Number Theory2003Q2
Algebra and Number Theory2004Q1
Algebra and Number Theory2005Q1
Algebra and Number Theory2006Q2
Algebra and Number Theory2007Q2
Algebra and Number Theory2008Q1
Algebra and Number Theory2009Q2
Algebra and Number Theory2010Q1
Algebra and Number Theory2011Q1
Algebra and Number Theory2012Q2
Algebra and Number Theory2013Q2
Algebra and Number Theory2014Q2
Algebra and Number Theory2015Q1
Algebra and Number Theory2016Q2
Algebra and Number Theory2017Q2
Algebra and Number Theory2018Q1
Algebra and Number Theory2019Q1
Algebra and Number Theory2020Q2
SJR

The SJR is a size-independent prestige indicator that ranks journals by their 'average prestige per article'. It is based on the idea that 'all citations are not created equal'. SJR is a measure of scientific influence of journals that accounts for both the number of citations received by a journal and the importance or prestige of the journals where such citations come from It measures the scientific influence of the average article in a journal, it expresses how central to the global scientific discussion an average article of the journal is.

YearSJR
19990.505
20000.756
20010.675
20020.609
20030.842
20041.282
20051.238
20060.989
20070.883
20081.033
20090.781
20101.033
20111.395
20120.757
20130.776
20140.926
20150.895
20160.799
20170.861
20180.841
20190.804
20200.814
Total Documents

Evolution of the number of published documents. All types of documents are considered, including citable and non citable documents.

YearDocuments
19990
20009
200143
200252
200346
200447
200546
200642
200739
200841
200945
201049
201142
201256
201355
201455
201548
201645
201744
201841
201936
202038
Citations per document

This indicator counts the number of citations received by documents from a journal and divides them by the total number of documents published in that journal. The chart shows the evolution of the average number of times documents published in a journal in the past two, three and four years have been cited in the current year. The two years line is equivalent to journal impact factor ™ (Thomson Reuters) metric.

Cites per documentYearValue
Cites / Doc. (4 years)19990.250
Cites / Doc. (4 years)20000.325
Cites / Doc. (4 years)20010.594
Cites / Doc. (4 years)20020.600
Cites / Doc. (4 years)20030.442
Cites / Doc. (4 years)20040.640
Cites / Doc. (4 years)20050.574
Cites / Doc. (4 years)20060.602
Cites / Doc. (4 years)20070.547
Cites / Doc. (4 years)20080.626
Cites / Doc. (4 years)20090.655
Cites / Doc. (4 years)20100.647
Cites / Doc. (4 years)20110.891
Cites / Doc. (4 years)20120.627
Cites / Doc. (4 years)20130.573
Cites / Doc. (4 years)20140.629
Cites / Doc. (4 years)20150.630
Cites / Doc. (4 years)20160.645
Cites / Doc. (4 years)20171.222
Cites / Doc. (4 years)20181.271
Cites / Doc. (4 years)20191.242
Cites / Doc. (4 years)20201.325
Cites / Doc. (3 years)19990.250
Cites / Doc. (3 years)20000.345
Cites / Doc. (3 years)20010.514
Cites / Doc. (3 years)20020.385
Cites / Doc. (3 years)20030.442
Cites / Doc. (3 years)20040.624
Cites / Doc. (3 years)20050.559
Cites / Doc. (3 years)20060.475
Cites / Doc. (3 years)20070.548
Cites / Doc. (3 years)20080.654
Cites / Doc. (3 years)20090.508
Cites / Doc. (3 years)20100.624
Cites / Doc. (3 years)20110.822
Cites / Doc. (3 years)20120.581
Cites / Doc. (3 years)20130.599
Cites / Doc. (3 years)20140.608
Cites / Doc. (3 years)20150.620
Cites / Doc. (3 years)20160.551
Cites / Doc. (3 years)20171.189
Cites / Doc. (3 years)20181.336
Cites / Doc. (3 years)20191.269
Cites / Doc. (3 years)20201.504
Cites / Doc. (2 years)19990.091
Cites / Doc. (2 years)20000.107
Cites / Doc. (2 years)20010.111
Cites / Doc. (2 years)20020.385
Cites / Doc. (2 years)20030.474
Cites / Doc. (2 years)20040.551
Cites / Doc. (2 years)20050.366
Cites / Doc. (2 years)20060.527
Cites / Doc. (2 years)20070.602
Cites / Doc. (2 years)20080.556
Cites / Doc. (2 years)20090.563
Cites / Doc. (2 years)20100.512
Cites / Doc. (2 years)20110.787
Cites / Doc. (2 years)20120.604
Cites / Doc. (2 years)20130.571
Cites / Doc. (2 years)20140.649
Cites / Doc. (2 years)20150.500
Cites / Doc. (2 years)20160.534
Cites / Doc. (2 years)20171.043
Cites / Doc. (2 years)20181.315
Cites / Doc. (2 years)20191.341
Cites / Doc. (2 years)20201.610
Total Cites 
Self-Cites

Evolution of the total number of citations and journal's self-citations received by a journal's published documents during the three previous years.
Journal Self-citation is defined as the number of citation from a journal citing article to articles published by the same journal.

CitesYearValue
Self Cites19990
Self Cites20001
Self Cites20010
Self Cites20020
Self Cites20032
Self Cites20042
Self Cites20057
Self Cites20066
Self Cites20072
Self Cites20082
Self Cites20092
Self Cites20106
Self Cites201111
Self Cites20124
Self Cites20137
Self Cites20143
Self Cites20155
Self Cites20164
Self Cites20172
Self Cites20185
Self Cites20195
Self Cites20201
Total Cites199920
Total Cites200019
Total Cites200119
Total Cites200220
Total Cites200346
Total Cites200488
Total Cites200581
Total Cites200666
Total Cites200774
Total Cites200883
Total Cites200962
Total Cites201078
Total Cites2011111
Total Cites201279
Total Cites201388
Total Cites201493
Total Cites2015103
Total Cites201687
Total Cites2017176
Total Cites2018183
Total Cites2019165
Total Cites2020182
External Cites per Doc 
Cites per Doc

Evolution of the number of total citation per document and external citation per document (i.e. journal self-citations removed) received by a journal's published documents during the three previous years. External citations are calculated by subtracting the number of self-citations from the total number of citations received by the journal’s documents.

CitesYearValue
External Cites per document19990.250
External Cites per document20000.327
External Cites per document20010.514
External Cites per document20020.385
External Cites per document20030.423
External Cites per document20040.610
External Cites per document20050.510
External Cites per document20060.432
External Cites per document20070.533
External Cites per document20080.638
External Cites per document20090.492
External Cites per document20100.576
External Cites per document20110.741
External Cites per document20120.551
External Cites per document20130.551
External Cites per document20140.588
External Cites per document20150.590
External Cites per document20160.525
External Cites per document20171.176
External Cites per document20181.299
External Cites per document20191.231
External Cites per document20201.496
Cites per document19990.250
Cites per document20000.345
Cites per document20010.514
Cites per document20020.385
Cites per document20030.442
Cites per document20040.624
Cites per document20050.559
Cites per document20060.475
Cites per document20070.548
Cites per document20080.654
Cites per document20090.508
Cites per document20100.624
Cites per document20110.822
Cites per document20120.581
Cites per document20130.599
Cites per document20140.608
Cites per document20150.620
Cites per document20160.551
Cites per document20171.189
Cites per document20181.336
Cites per document20191.269
Cites per document20201.504
% International Collaboration

International Collaboration accounts for the articles that have been produced by researchers from several countries. The chart shows the ratio of a journal's documents signed by researchers from more than one country; that is including more than one country address.

YearInternational Collaboration
19990
200022.22
200139.53
20029.62
200326.09
200425.53
200526.09
200633.33
200720.51
200819.51
200944.44
201040.82
201130.95
201230.36
201329.09
201427.27
201531.25
201642.22
201745.45
201836.59
201925.00
202034.21
Citable documents 
Non-citable documents

Not every article in a journal is considered primary research and therefore "citable", this chart shows the ratio of a journal's articles including substantial research (research articles, conference papers and reviews) in three year windows vs. those documents other than research articles, reviews and conference papers.

DocumentsYearValue
Non-citable documents19990
Non-citable documents20000
Non-citable documents20010
Non-citable documents20020
Non-citable documents20030
Non-citable documents20040
Non-citable documents20050
Non-citable documents20060
Non-citable documents20070
Non-citable documents20080
Non-citable documents20090
Non-citable documents20100
Non-citable documents20110
Non-citable documents20120
Non-citable documents20130
Non-citable documents20140
Non-citable documents20150
Non-citable documents20160
Non-citable documents20170
Non-citable documents20180
Non-citable documents20190
Non-citable documents20200
Citable documents199980
Citable documents200055
Citable documents200137
Citable documents200252
Citable documents2003104
Citable documents2004141
Citable documents2005145
Citable documents2006139
Citable documents2007135
Citable documents2008127
Citable documents2009122
Citable documents2010125
Citable documents2011135
Citable documents2012136
Citable documents2013147
Citable documents2014153
Citable documents2015166
Citable documents2016158
Citable documents2017148
Citable documents2018137
Citable documents2019130
Citable documents2020121
Cited documents 
Uncited documents

Ratio of a journal's items, grouped in three years windows, that have been cited at least once vs. those not cited during the following year.

DocumentsYearValue
Uncited documents199967
Uncited documents200040
Uncited documents200126
Uncited documents200236
Uncited documents200377
Uncited documents200484
Uncited documents200594
Uncited documents200695
Uncited documents200789
Uncited documents200874
Uncited documents200983
Uncited documents201076
Uncited documents201175
Uncited documents201282
Uncited documents201392
Uncited documents201495
Uncited documents2015101
Uncited documents2016101
Uncited documents201765
Uncited documents201858
Uncited documents201960
Uncited documents202038
Cited documents199913
Cited documents200015
Cited documents200111
Cited documents200216
Cited documents200327
Cited documents200457
Cited documents200551
Cited documents200644
Cited documents200746
Cited documents200853
Cited documents200939
Cited documents201049
Cited documents201160
Cited documents201254
Cited documents201355
Cited documents201458
Cited documents201565
Cited documents201657
Cited documents201783
Cited documents201879
Cited documents201970
Cited documents202083
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Metrics based on Scopus® data as of April 2021
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