The 2nd edition of Research.com ranking of the best researchers in the
arena of Mathematics is based on data
derived from a wide range of data sources including OpenAlex and
CrossRef. The bibliometric data for devising the citation-based metrics were
gathered on 21-12-2022. Position in the ranking is based on a
researcher’s D-index (Discipline H-index), which
includes exclusively publications and citation
metrics for an examined discipline.
The focus of our Mathematics research
Research.com’s best scientists ranking is a credible list of leading scholars from the area of Mathematics, based on a thorough analysis of 166,880 scholars determined from a variety of bibliometric data sources. For the discipline of Mathematics, more than 6262 scientists were examined.
What is D-index acceptance threshold for Mathematics
The D-index threshold for including a researcher to be examined is set to 30 if the majority of of their publications are in the discipline of Mathematics. The inclusion factors for researchers to be considered into the ranking of top scholars are based on the D-index, proportion of the publications made within the specific area as well as the awards and achievements of the scientists. The D-index threshold for listing leading researchers is set as an increment of 10 depending on the total number of scientists projected for each discipline whilst guaranteeing that the top 1% of best scientists are added into the list. We estimate a proximity of 30% or less between a researcher’s general H-index and their D-index.
Additional verification methods
Since our primary goal is to ensure that only credible scholars are mentioned in our ranking we believe that raw data are never supposed to be an absolute measure to evaluate the work of researchers. For that reason we manually check every profile and cross-correlate it against publications in a varied range of reliable sources. Even though it’s not a factor impacting a researcher’s position in the ranking, the amount of papers published in major journals and conference proceedings should be a credible secondary indication of their contribution to research in a given field of study. Position in the ranking is established using every scholar’s D-index using data compiled from OpenAlex and CrossRef, which are the most prominent and well-established bibliometric databases of this type accessible to the research community. A comprehensive definition of our research process can be found on our methodology page.
Our mission is to inspire scientists, entrepreneurs and decision-makers worldwide to explore where prominent experts are heading and to offer a way for the whole scientific community to get to know who the leading experts in specific disciplines, in various countries, or even within research institutions are.
Key findings for Mathematics
With 21 scientists Sweden ranks in spot 20 globally.
As far as institutions are concerned, the institution with the highest number of top researchers in Sweden is Royal Institute of Technology with 5 scientists affiliated with it being features in the Mathematics ranking. It is followed by Lund University with 4 scientists. Ranking thirds is Linnaeus University with 3 scholars.
Prominent scientists featured in Sweden are representing Chalmers University of Technology, Linnaeus University, Karlstad University, Royal Institute of Technology, Uppsala University, Jönköping University, Linköping University, Umeå University, Stockholm University, Lund University.
Professor Svante Janson from Uppsala University is listed as the best researcher in Sweden in our ranking with a D-index of 71. Ranking on spot no. 2 in Sweden is Lars Hörmander from Lund University with a D-index of 57. The third place in Sweden is taken by Andrei Khrennikov from Linnaeus University with a D-index of 55.
The average D-index for the top 5% researchers is 71 against an average of 42 for all 21 scholars listed in the ranking.
The average number of publications within the discipline of Mathematics for the top 5% of scientists in the ranking is 424 against an average of 206 for all 21 researchers.
The average number of citations for the top 1% scientists is 12871 against an average of 12871 for all 21 scientists.