Central to determining a scientist’s position in this ranking is the researcher’s D-index (Discipline H-index). Unlike a general H-index, the D-index pertains exclusively to publications and citations within the examined discipline—in this case, Mathematics. This ensures that the ranking accurately reflects a scientist’s impact and relevance specifically within the mathematical sciences.
Scope of Research and Qualification Criteria
This ranking encompasses an extensive examination of 279,971 scientist profiles extracted from a variety of bibliometric data sources, spanning across all academic disciplines. Within this comprehensive dataset, 15 scholars specialized in Mathematics in Egypt were identified and evaluated. To qualify for inclusion in the ranking, candidates were required to meet a minimum D-index threshold of 30, ensuring representation of only highly impactful researchers.
Additionally, a majority of each qualifying scientist’s tier publications needed to demonstrate a clear focus within the field of Mathematics. Awards and other notable professional achievements tied to the discipline were also factored into the consideration process. The D-index threshold is dynamically adjusted in increments of 10 according to the estimated number of scholars in each discipline, guaranteeing that approximately the top 1% of leading researchers are curated in the respective listings.
To maintain discipline specificity and ensure meaningful comparisons, candidates were also required to exhibit a proximity of 30% or less between their overall H-index and their D-index. This criterion ensures that the researcher’s impact is substantially aligned with contributions in Mathematics rather than other fields.
Verification and Validation Processes
We acknowledge that raw bibliometric data alone cannot comprehensively evaluate scholarly output. Therefore, each scientist’s profile included in the ranking underwent meticulous manual verification. These profiles were cross-correlated with publications indexed in a wide range of trustworthy sources to confirm accuracy and relevance.
Although not directly influencing the ranking position, the volume of papers published in prominent journals and top-tier conference proceedings serves as a valuable secondary signal of a researcher’s contribution to their discipline. The final ranking positions are determined based on each researcher’s D-index, calculated using data primarily from OpenAlex and CrossRef, ensuring a high standard of data integrity and credibility.
We encourage readers to review the complete details of the ranking methodology for full transparency by visiting our methodology page.
Research.com’s Mission and Vision
Research.com’s overarching mission in publishing this ranking is to motivate researchers, companies, and policymakers worldwide to understand emerging directions in scholarly expertise. We aim to provide the global scientific community with transparent, rigorously curated insights into who the leading experts are within specific fields of study, countries, and research institutions.
By fostering greater visibility and recognition of top-performing scientists, Research.com strives to facilitate collaboration, informed decision-making, and strategic investments across academia and industry. The meticulous and comprehensive approach undertaken in this ranking underscores our commitment to elevating the highest standards of academic excellence and integrity.
