OpenJournalRank

Journal rankings · indicator year 2012

Choose a field to open its ranking, or a journal to find its row in its subfield’s list.

Subfield ranking · 2012

Algebra and Number Theory journal rankings 2012

23 ranked journals · Subfield in Mathematics

Algebra and Number Theory has 23 ranked journals in 2012. The median OJR fell 0.09 on 2011 to 0.53, below the world average of 1.00; Q1 starts at OJR 0.73. The top three are Journal of Commutative Algebra, Mathematical and Computer Modelling of Dynamical Systems, and The Ramanujan Journal.

Ranks and citation indicators: 2012. Journal access status and listed APC: source snapshot September 23, 2026.

Ranked journals

Journals whose main subfield sits in this category and that published at least 30 citable documents (articles, reviews and conference papers) in 2009–2011, the window the 2012 score is computed on.

23
5% of Mathematics
Median OJR

The OpenJournalRank Indicator (OJR) is a free, publicly available metric of a journal’s field-normalized citation impact, computed from open OpenAlex citation data. It compares citations to a journal’s papers from the previous three years with the world average for papers of the same subfield, year and type, so 1.00 is the world average and values can be compared across fields. It is computed with the NCI3 method.

The middle OJR among ranked journals in this category: half score higher, half lower. 1.00 is the world average for papers of the same subfield, year and type.

The dot is this category, the solid tick is the median of all ranked journals and the dashed line is the world average.

0.53-0.09 vs 2011
This subfieldAll 0.94World 1.00
Open-access journals

Share of ranked journals in this category that are fully open access, so every paper is free to read. Hybrid journals, which sell subscriptions and open single papers for a fee, are not counted.

17%
All fields: 24%
Median listed APC

Median list price of the article processing charge, in US dollars, among ranked journals in this category that list a price above zero. Journals with a listed APC of $0 and journals with no known price are left out of this median. The At a glance table below gives a second median that includes the $0 prices.

$3,290
Median positive listed APC: $3,290 among 9 journals. 14 have no known price. All fields: $3,413.

Subfields of Mathematics (10)

23 ranked journals

Filters

Quartile

Quartiles split the ranked journals of the list you are viewing into four equal groups by OJR. Q1 is the top quarter and Q4 the bottom quarter.

They are computed within the list on screen, so a journal can be Q1 in its subfield and Q2 in the global ranking.

Access
APC (list price)
Algebra and Number Theory ranking, 2012

Rank is the position by OJR within the list on screen; 1 is the highest.

OJR is field-normalized 3-year citation impact: 1.00 is the world average for papers of the same subfield, year and type, so values compare across fields.

The badge is the journal’s quartile in this list.

OJR

Citations per paper over a two-year window, counted from OpenAlex. It is not field-normalized, so compare it only between journals of the same field.

▲ or ▼ is the change from 2011. This is OpenJournalRank’s own count, not Clarivate’s Journal Impact Factor.

Citable documents (articles, reviews and conference papers) published in 2009–2011, the window the 2012 OJR is computed on. A journal needs at least 30 to be ranked.

Share of the journal’s 2009–2011 papers that are free to read in any open-access form. The green OA tag next to a title marks a fully open-access journal.

List price of the article processing charge in US dollars. “$0 listed” means the listed price is zero; a dash means no price is listed.

The line is the journal’s OJR from 2003 to 2012.

Compare
1Journal of Commutative AlgebraRocky Mountain Mathematics Consortium · United States
1.29Q10.94 0.46 up from 20118093%—
1.23Q11.63 0.52 up from 201111020%$1,533
3The Ramanujan JournalSpringer Science+Business Media · Netherlands
0.86Q10.60 0.07 up from 201119020%$2,990
4Bulletin of the Australian Mathematical SocietyOACambridge University Press · United Kingdom
0.83Q10.56 0.16 down from 2011405100%$3,550
5Journal of Number TheoryElsevier BV · Belgium
0.74Q10.59 0.15 down from 2011515100%$3,550
6Acta ArithmeticaPolish Academy of Sciences · Poland
0.73Q10.55 0.04 down from 201137695%—
0.68Q20.55 0.23 down from 201120845%—
8Communications in AlgebraTaylor & Francis · United States
0.63Q20.51 0.01 up from 201193710%—
9International Journal of Number TheoryWorld Scientific · Singapore
0.58Q20.43 0.05 down from 201136830%—
10Lithuanian Mathematical JournalSpringer Science+Business Media · Netherlands
0.58Q20.65 0.10 up from 20111168%$3,290
11Journal of Algebra and Its ApplicationsWorld Scientific · Singapore
0.55Q20.40 0.26 down from 201126218%—
12Periodica Mathematica HungaricaSpringer Science+Business Media · Hungary
0.53Q20.46 0.02 down from 20117911%$3,090
13Algebra ColloquiumWorld Scientific · Singapore
0.51Q30.39 0.03 up from 20112384%—
14Indian Journal of Pure and Applied MathematicsIndian National Science Academy · India
0.49Q30.44 0.19 down from 2011718%—
15Functiones et Approximatio Commentarii MathematiciAdam Mickiewicz University Press · Poland
0.46Q30.35 0.10 down from 201110079%—
0.43Q30.43no change63100%$3,390
17Czechoslovak Mathematical JournalSpringer Nature · Netherlands
0.41Q30.40 0.02 down from 201124790%$2,890
18IntegersDe Gruyter · Germany
0.39Q30.30 0.07 down from 201121832%—
19Journal of Generalized Lie Theory and ApplicationsOAOMICS Publishing Group · Estonia
0.26Q40.05 0.22 down from 20117990%—
20Asian-European Journal of MathematicsWorld Scientific · Singapore
0.26Q40.27 0.06 down from 20111665%—
21ISRN AlgebraOAHindawi Publishing Corporation · Egypt
0.22Q40.17no 2011 value30100%——
22MathematikaWiley · United Kingdom
0.21Q40.15 0.07 down from 201127014%$3,930
23Actes des rencontres du CIRMCellule MathDoc/CEDRAM · France
0.09Q40.06 0.06 up from 201147——

Citations made in 2012. Corpus-wide, 75.7% of core-journal articles and reviews published that year have at least one matched reference; the share varies by journal and field.

9 additional Algebra and Number Theory journals with metrics are unranked under this release’s eligibility rules: a journal needs at least 30 citable documents in 2009–2011, at least 80% of them with a subfield, and a positive world-average expectation. Ranks are within the whole category; filters hide rows without re-ranking. OJR excludes self-citations.

Rising journals

At a glance

Indicator year: 2012. Publication window: 2009–2011. How these summaries are calculated

Ranked journals
23
Window papers (baseline)
8,338 +13.9% from indicator year 2009
Median OJR
0.53 -8.2% from indicator year 2009
Rising journals (2025)
0

Window papers are the baseline paper population: citable papers (articles, reviews and conference papers) from 2009–2011 in all journals of the world-average baseline, including non-core journals, counted by each paper’s own subfield. They are not the papers of the ranked journals alone.

Category by indicator year
MeasureYear series20002001200220032004200520062007200820092010201120122013201420152016201720182019202020212022202320242025
Ranked journals1112131412131516151721222324252525252526262627252626
Window papers (baseline)4,7575,0435,4415,7145,9346,0026,3046,5227,0167,3217,6927,9488,3388,7019,2449,67310,14010,38510,36410,41710,58810,89211,19311,34111,40911,553
Median OJR0.590.5180.540.5730.6320.5530.6290.600.660.580.5240.620.530.5210.610.5740.5520.510.480.420.44880.3990.44940.380.3970.39

How to read these rankings

OJR, the OpenJournalRank Indicator
A field-normalized 3-year citation impact, computed from OpenAlex with the NCI3 method. It divides the citations a journal’s papers received by the world average for papers of the same subfield, year and type, so 1.00 is the world average and 2.00 means twice as many citations as expected. Because it is normalized, it can be compared across fields. Read the methodology
Quartiles
Q1 to Q4 split the ranked journals of the list you are viewing into four equal groups by OJR. A journal’s quartile depends on the list: the same journal can be Q1 in its subfield and Q2 among all journals.
Impact factor (2-year)
Citations per paper over a two-year window, counted from OpenAlex. It is easy to compare with familiar impact factors but is not field-normalized, so compare it only within a field. It is not Clarivate’s Journal Impact Factor. Why it differs from the Journal Impact Factor
Rank ranges
Each rank in the latest year carries a likely range from 1,000 resamples of the journal’s papers. Where two journals’ ranges overlap, the data cannot tell them apart, so treat neighbouring ranks as ties.