A researcher’s position in this ranking is chiefly determined by their D-index (Discipline H-index), a refined metric that selectively incorporates only those scholarly outputs and citation counts relevant to the specific discipline under examination, in this case, Mathematics. This discipline-focused approach provides a more precise measure of scientific influence within the targeted field.
Scope of Research and Selection Criteria
In constructing this ranking, a total of 279,971 scientist profiles, aggregated across all academic disciplines through a variety of bibliometric data sources, were rigorously analyzed. Of these, 25 scientists specializing in Mathematics and active in Norway were identified and evaluated in depth. To qualify for inclusion in the ranking, a scientist’s D-index in Mathematics had to be at least 30. Furthermore, the majority of their tier publications were required to have a clear focus on the Mathematical sciences, ensuring the concentration and relevance of their research portfolio.
Beyond bibliometric thresholds, the researchers’ awards and achievements in Mathematics were also taken into account as qualitative indicators of eminence. The threshold for the D-index was strategically set in increments of 10, adjusted according to the estimated total number of scholars in each discipline. This tiered threshold model guarantees the incorporation of the top 1% of leading scholars within their respective fields. Moreover, an essential consistency check was applied, requiring that the proximity between a scientist’s overall H-index and their Mathematics-specific D-index not exceed 30%, thereby reinforcing the discipline-specific validity of the rankings.
Verification and Methodology Assurance
The Research.com team recognizes that raw bibliometric data alone cannot serve as an absolute indicator of scholarly impact or quality. In acknowledgment of this, all scientist profiles included in the ranking underwent meticulous manual verification. This process involved cross-correlating researchers’ publication records against a broad range of trustworthy academic and institutional sources, ensuring accuracy and authenticity.
Although the number of papers published in prestigious journals and internationally recognized conference proceedings does not directly influence a researcher’s ranking position, it serves as a valuable secondary signal of a scientist’s contribution and prominence within their area of expertise.
The final ranking positions are exclusively derived from each researcher's D-index as calculated from data gathered through OpenAlex and CrossRef, which are among the most prominent and trusted bibliometric databases accessible to the research community. For a detailed explanation of the methodologies employed, interested readers are encouraged to visit our methodology page.
Research.com’s Mission and Objectives
Research.com’s overarching mission in producing this ranking is to provide an informative and motivational resource for researchers, companies, policymakers, and academic institutions worldwide. By illuminating where leading experts in Mathematics are focusing their efforts, the ranking aims to foster greater awareness and understanding of top-tier scholarly work. It offers a transparent pathway for the global scientific community to identify and engage with leading experts across specific fields, countries, and research institutions, thereby promoting collaboration, innovation, and informed decision-making on both academic and strategic levels.
