A scientist's position in the ranking is determined by their D-index (Discipline H-index), a metric that evaluates impact solely within the specific discipline under examination—in this case, Mathematics. The D-index focuses on citation and publication metrics strictly related to mathematics research, providing a discipline-focused measure of scholarly influence.
Scope and Criteria of the Ranking
The evaluation underlying this ranking involved a comprehensive examination of 279,971 scientist profiles aggregated from various bibliometric data sources, covering all disciplines. Within this dataset, 218 scientists specializing in Mathematics were identified for consideration.
To qualify for inclusion in the ranking, a scientist’s D-index had to be at least 30, with the majority of their high-tier publications situated in the field of Mathematics. Additionally, awards and documented achievements in mathematics contributed to the assessment of candidates, further enhancing the rigor of the selection process.
The threshold for the D-index is adaptively set in increments of 10 according to the estimated total number of scholars within each discipline. This approach ensures representation of the top 1% of leading scholars in the list. Furthermore, a proximity criterion is applied whereby a scientist’s general H-index and their D-index differ by no more than 30%, ensuring the discipline-specific impact is reflective of their overall research stature.
Additional Verification Practices
Recognizing that raw bibliometric data alone cannot provide an absolute evaluation of scholarly contributions, the Research.com team has implemented thorough manual verification processes. Each scientist profile was carefully cross-correlated against publications listed in a broad array of trustworthy and authoritative sources. This painstaking verification enhances the accuracy and integrity of the final ranking.
While not directly influencing the ranking position, the number of papers published by a scientist in prominent journals and conference proceedings serves as an important secondary indicator of their research contribution within Mathematics.
The ranking’s position assignments are established solely on the D-index derived from data in OpenAlex and CrossRef, two of the most prominent and widely recognized bibliometric databases accessible to the global research community. For a more detailed explanation of the methodology employed, we invite readers to consult our methodology page.
Research.com’s Mission and Vision
Research.com is committed to motivating researchers, academic institutions, companies, and policymakers worldwide to observe and understand where leading experts are focusing their efforts. Our objective is to provide the broader scientific community with transparent and credible insights into who the top experts are within specific fields of study, across different countries and research organizations.
Through meticulous data gathering, multi-layered verification, and discipline-specific evaluation, the ranking strives to foster collaboration, recognition, and informed decision-making in the global scientific ecosystem.
