
Jesús Guillera Ramanujan-type series for π dead at age 70
Jesús Guillera, a Spanish mathematician,
died on February 9, 2026, at the age of 70. He specialized in number theory and was best known for his work on Ramanujan-type series…
1 obituary for famous people named Guillera. See who they were, when they died, and read their memorial pages.

Jesús Guillera, a Spanish mathematician,
died on February 9, 2026, at the age of 70. He specialized in number theory and was best known for his work on Ramanujan-type series…