Data Sources and Citation Metrics
The 5th edition of the Research.com Best Mathematics Scientists in Qatar Ranking is grounded in comprehensive bibliometric data, primarily sourced from OpenAlex and CrossRef, supplemented by multiple other trusted bibliometric databases. This amalgamation of data sources ensures a robust and expansive coverage of scientific output. All citation-based metrics used in constructing the ranking were collected on January 12, 2026, providing a recent and consistent bibliometric snapshot for evaluation.
A scientist’s position within the ranking is determined by their D-index (Discipline H-index). This metric refines the traditional H-index by considering only those publications and citation counts that fall strictly within the examined discipline of Mathematics, thereby offering a targeted measure of research impact specific to the field.
Scope of Research and Inclusion Criteria
The ranking assesses a broad spectrum of researchers, initially reviewing 279,971 scientist profiles aggregated from diverse bibliometric databases across all scientific disciplines. Within this extensive dataset, 3 scientists were identified specifically within the field of Mathematics in Qatar. To qualify for inclusion in the ranking, a researcher must meet the following criteria:
- Possess a D-index of at least 30, ensuring a significant level of impact and contribution in Mathematics.
- Have a majority of their tier publications concentrated in the area of Mathematics, ensuring disciplinary relevance.
- Demonstrate recognized awards and achievements pertinent to the Mathematics field, as an auxiliary measure of excellence.
It is important to note that the threshold D-index is dynamically calibrated in increments of 10 based on the estimated total number of scholars in each discipline. This approach guarantees inclusion of the top 1% of leading scholars while maintaining rigorous standards. Additionally, to ensure focus and consistency, a proximity criterion is applied requiring that the difference between a scientist’s general H-index and their D-index not exceed 30%.
Verification and Methodological Rigor
Recognizing the limitations of raw bibliometric data as a sole evaluative tool, the Research.com team undertook meticulous manual verification of all scientist profiles. This process involved cross-correlation against publications indexed in a wide array of reputable and trustworthy sources, thereby enhancing the credibility and accuracy of the ranking.
While the number of publications in prominent journals and conference proceedings does not directly influence a researcher’s ranking position, it is regarded as a valuable secondary indicator of their contribution to the Mathematical sciences.
The final ranking positions are established using the D-index, calculated from data primarily harvested through OpenAlex and CrossRef, which stand as two of the most authoritative and widely used bibliometric databases available to the research community globally.
For a detailed exposition of the methodology, readers are encouraged to visit our methodology page.
Research.com’s Mission and Vision
At Research.com, our mission is to inspire researchers, companies, and policymakers worldwide to closely examine the trajectory and impact of leading experts within their disciplines. We strive to provide a transparent and accessible platform for the broader scientific community to identify and engage with top-tier scholars across diverse fields, geographical regions, and research institutions.
This ranking epitomizes our commitment to fostering informed dialogue and strategic decision-making, facilitating collaboration, funding allocations, and policy development aligned with areas of peak scientific excellence.
