Scimago Journal & Country Rank

Journal of Combinatorial Theory - Series A

Country

United States

Universities and research institutions in United States

Subject Area and Category

Publisher

Academic Press Inc.

H-Index

56

Publication type

Journals

ISSN

00973165, 10960899

Coverage

1971-2021

Information

Homepage

How to publish in this journal

Contact

Scope

The Journal of Combinatorial Theory publishes original mathematical research concerned with theoretical and physical aspects of the study of finite and discrete structures in all branches of science. Series A is concerned primarily with structures, designs, and applications of combinatorics and is a valuable tool for mathematicians and computer scientists. 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
Computational Theory and Mathematics1999Q1
Computational Theory and Mathematics2000Q1
Computational Theory and Mathematics2001Q1
Computational Theory and Mathematics2002Q2
Computational Theory and Mathematics2003Q1
Computational Theory and Mathematics2004Q2
Computational Theory and Mathematics2005Q1
Computational Theory and Mathematics2006Q1
Computational Theory and Mathematics2007Q1
Computational Theory and Mathematics2008Q1
Computational Theory and Mathematics2009Q1
Computational Theory and Mathematics2010Q1
Computational Theory and Mathematics2011Q1
Computational Theory and Mathematics2012Q2
Computational Theory and Mathematics2013Q1
Computational Theory and Mathematics2014Q1
Computational Theory and Mathematics2015Q1
Computational Theory and Mathematics2016Q1
Computational Theory and Mathematics2017Q1
Computational Theory and Mathematics2018Q1
Computational Theory and Mathematics2019Q1
Computational Theory and Mathematics2020Q1
Discrete Mathematics and Combinatorics1999Q2
Discrete Mathematics and Combinatorics2000Q2
Discrete Mathematics and Combinatorics2001Q1
Discrete Mathematics and Combinatorics2002Q2
Discrete Mathematics and Combinatorics2003Q2
Discrete Mathematics and Combinatorics2004Q1
Discrete Mathematics and Combinatorics2005Q1
Discrete Mathematics and Combinatorics2006Q1
Discrete Mathematics and Combinatorics2007Q1
Discrete Mathematics and Combinatorics2008Q1
Discrete Mathematics and Combinatorics2009Q1
Discrete Mathematics and Combinatorics2010Q1
Discrete Mathematics and Combinatorics2011Q1
Discrete Mathematics and Combinatorics2012Q1
Discrete Mathematics and Combinatorics2013Q1
Discrete Mathematics and Combinatorics2014Q1
Discrete Mathematics and Combinatorics2015Q1
Discrete Mathematics and Combinatorics2016Q1
Discrete Mathematics and Combinatorics2017Q1
Discrete Mathematics and Combinatorics2018Q1
Discrete Mathematics and Combinatorics2019Q1
Discrete Mathematics and Combinatorics2020Q1
Theoretical Computer Science1999Q1
Theoretical Computer Science2000Q1
Theoretical Computer Science2001Q1
Theoretical Computer Science2002Q1
Theoretical Computer Science2003Q1
Theoretical Computer Science2004Q1
Theoretical Computer Science2005Q1
Theoretical Computer Science2006Q1
Theoretical Computer Science2007Q1
Theoretical Computer Science2008Q1
Theoretical Computer Science2009Q1
Theoretical Computer Science2010Q1
Theoretical Computer Science2011Q1
Theoretical Computer Science2012Q1
Theoretical Computer Science2013Q1
Theoretical Computer Science2014Q1
Theoretical Computer Science2015Q1
Theoretical Computer Science2016Q1
Theoretical Computer Science2017Q1
Theoretical Computer Science2018Q1
Theoretical Computer Science2019Q1
Theoretical Computer Science2020Q1
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
19991.116
20000.947
20011.202
20020.890
20031.042
20040.879
20051.397
20061.090
20071.183
20081.576
20091.565
20101.163
20111.157
20120.972
20131.328
20141.277
20152.049
20161.506
20171.392
20181.282
20191.346
20201.187
Total Documents

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

YearDocuments
199989
200082
200197
2002102
2003104
200480
200580
2006124
200798
2008100
200998
201091
2011167
2012112
2013136
2014100
201588
201671
201798
2018129
2019118
2020121
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)19990.551
Cites / Doc. (4 years)20000.560
Cites / Doc. (4 years)20010.502
Cites / Doc. (4 years)20020.541
Cites / Doc. (4 years)20030.546
Cites / Doc. (4 years)20040.496
Cites / Doc. (4 years)20050.713
Cites / Doc. (4 years)20060.872
Cites / Doc. (4 years)20070.830
Cites / Doc. (4 years)20080.916
Cites / Doc. (4 years)20091.062
Cites / Doc. (4 years)20100.876
Cites / Doc. (4 years)20110.982
Cites / Doc. (4 years)20120.906
Cites / Doc. (4 years)20131.056
Cites / Doc. (4 years)20141.051
Cites / Doc. (4 years)20151.173
Cites / Doc. (4 years)20161.122
Cites / Doc. (4 years)20172.081
Cites / Doc. (4 years)20182.185
Cites / Doc. (4 years)20192.484
Cites / Doc. (4 years)20202.435
Cites / Doc. (3 years)19990.551
Cites / Doc. (3 years)20000.490
Cites / Doc. (3 years)20010.534
Cites / Doc. (3 years)20020.511
Cites / Doc. (3 years)20030.555
Cites / Doc. (3 years)20040.449
Cites / Doc. (3 years)20050.755
Cites / Doc. (3 years)20060.845
Cites / Doc. (3 years)20070.891
Cites / Doc. (3 years)20080.944
Cites / Doc. (3 years)20091.050
Cites / Doc. (3 years)20100.801
Cites / Doc. (3 years)20110.983
Cites / Doc. (3 years)20120.933
Cites / Doc. (3 years)20131.127
Cites / Doc. (3 years)20141.046
Cites / Doc. (3 years)20151.129
Cites / Doc. (3 years)20161.142
Cites / Doc. (3 years)20172.154
Cites / Doc. (3 years)20182.354
Cites / Doc. (3 years)20192.705
Cites / Doc. (3 years)20202.316
Cites / Doc. (2 years)19990.500
Cites / Doc. (2 years)20000.403
Cites / Doc. (2 years)20010.509
Cites / Doc. (2 years)20020.453
Cites / Doc. (2 years)20030.558
Cites / Doc. (2 years)20040.485
Cites / Doc. (2 years)20050.707
Cites / Doc. (2 years)20060.863
Cites / Doc. (2 years)20070.887
Cites / Doc. (2 years)20080.941
Cites / Doc. (2 years)20090.864
Cites / Doc. (2 years)20100.742
Cites / Doc. (2 years)20110.915
Cites / Doc. (2 years)20120.922
Cites / Doc. (2 years)20131.154
Cites / Doc. (2 years)20140.992
Cites / Doc. (2 years)20151.140
Cites / Doc. (2 years)20161.032
Cites / Doc. (2 years)20172.264
Cites / Doc. (2 years)20182.456
Cites / Doc. (2 years)20192.595
Cites / Doc. (2 years)20202.320
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 Cites199921
Self Cites200022
Self Cites200114
Self Cites200220
Self Cites200323
Self Cites200424
Self Cites200517
Self Cites200619
Self Cites200718
Self Cites200834
Self Cites200924
Self Cites201017
Self Cites201140
Self Cites201233
Self Cites201360
Self Cites201430
Self Cites201540
Self Cites201618
Self Cites201716
Self Cites201833
Self Cites201945
Self Cites202031
Total Cites1999125
Total Cites2000120
Total Cites2001126
Total Cites2002137
Total Cites2003156
Total Cites2004136
Total Cites2005216
Total Cites2006223
Total Cites2007253
Total Cites2008285
Total Cites2009338
Total Cites2010237
Total Cites2011284
Total Cites2012332
Total Cites2013417
Total Cites2014434
Total Cites2015393
Total Cites2016370
Total Cites2017558
Total Cites2018605
Total Cites2019806
Total Cites2020799
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 document19990.458
External Cites per document20000.400
External Cites per document20010.475
External Cites per document20020.442
External Cites per document20030.478
External Cites per document20040.373
External Cites per document20050.696
External Cites per document20060.773
External Cites per document20070.833
External Cites per document20080.837
External Cites per document20090.981
External Cites per document20100.743
External Cites per document20110.844
External Cites per document20120.840
External Cites per document20130.965
External Cites per document20140.973
External Cites per document20151.014
External Cites per document20161.086
External Cites per document20172.101
External Cites per document20182.234
External Cites per document20192.562
External Cites per document20202.226
Cites per document19990.551
Cites per document20000.490
Cites per document20010.534
Cites per document20020.511
Cites per document20030.555
Cites per document20040.449
Cites per document20050.755
Cites per document20060.845
Cites per document20070.891
Cites per document20080.944
Cites per document20091.050
Cites per document20100.801
Cites per document20110.983
Cites per document20120.933
Cites per document20131.127
Cites per document20141.046
Cites per document20151.129
Cites per document20161.142
Cites per document20172.154
Cites per document20182.354
Cites per document20192.705
Cites per document20202.316
% 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
199923.60
200019.51
200139.18
200233.33
200324.04
200437.50
200530.00
200632.26
200724.49
200834.00
200929.59
201028.57
201135.33
201233.04
201339.71
201434.00
201543.18
201650.70
201734.69
201840.31
201938.14
202041.32
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 documents20023
Non-citable documents20033
Non-citable documents20043
Non-citable documents20050
Non-citable documents20060
Non-citable documents20072
Non-citable documents20082
Non-citable documents20092
Non-citable documents20100
Non-citable documents20110
Non-citable documents20120
Non-citable documents20130
Non-citable documents20140
Non-citable documents20150
Non-citable documents20160
Non-citable documents20171
Non-citable documents20181
Non-citable documents20191
Non-citable documents20200
Citable documents1999227
Citable documents2000245
Citable documents2001236
Citable documents2002265
Citable documents2003278
Citable documents2004300
Citable documents2005286
Citable documents2006264
Citable documents2007282
Citable documents2008300
Citable documents2009320
Citable documents2010296
Citable documents2011289
Citable documents2012356
Citable documents2013370
Citable documents2014415
Citable documents2015348
Citable documents2016324
Citable documents2017258
Citable documents2018256
Citable documents2019297
Citable documents2020345
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 documents1999145
Uncited documents2000163
Uncited documents2001158
Uncited documents2002174
Uncited documents2003177
Uncited documents2004217
Uncited documents2005159
Uncited documents2006146
Uncited documents2007150
Uncited documents2008163
Uncited documents2009147
Uncited documents2010164
Uncited documents2011144
Uncited documents2012182
Uncited documents2013173
Uncited documents2014208
Uncited documents2015160
Uncited documents2016140
Uncited documents201778
Uncited documents201876
Uncited documents201984
Uncited documents202094
Cited documents199982
Cited documents200082
Cited documents200178
Cited documents200294
Cited documents2003104
Cited documents200486
Cited documents2005127
Cited documents2006118
Cited documents2007134
Cited documents2008139
Cited documents2009175
Cited documents2010132
Cited documents2011145
Cited documents2012174
Cited documents2013197
Cited documents2014207
Cited documents2015188
Cited documents2016184
Cited documents2017181
Cited documents2018181
Cited documents2019214
Cited documents2020251
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