In Memoriam

Researchers in this directory who are no longer with us

The Top 100 and the regional pages list living researchers only, so the directory stays accurate for anyone using it to make contact. This page remembers the 14 researchers from the ranked pool who have passed away, plus a separate listing of foundational figures whose careers predate the digital publication record our pipeline reads from.

Foundational figures

The pipeline behind this site ranks researchers whose work appears on arXiv or in OpenAlex, which mostly means careers active from the mid-1990s onward. The names below predate that coverage. Their work is the bedrock on which modern research is built. They are listed by last name; each contribution is noted at the bottom of the page.

Foundational figures: contributions

• John W. Wrench (1911-2009): Computed the twin-prime constant and Artin's constant to high precision (1961), early machine work on the constants in the Hardy-Littlewood conjectures

From the ranked pool