Jeffrey Brian Remmel (October 12, 1948 – September 29, 2017) was an American mathematician employed by the University of California, San Diego.^[1] At the time of his death he held a distinguished professorship—his title was Distinguished Professor of Mathematics;^[2] he also held a position as a professor of computer science.^[3]

Remmel was born on October 12, 1948, in Clintonville, Wisconsin.^[4] He died aged 68 at Scripps Memorial Hospital in La Jolla, California on September 2, 2017,^[1] with a reported cause of death being a heart attack.^[5]

Remmel received a Bachelor of Arts degree in mathematics from Swarthmore College in 1974. Later, he received two degrees from Cornell University—a Master of Science in mathematics and a Doctor of Philosophy, also in math (1972 and 1974, respectively).^[3] At Cornell, he was advised by Anil Nerode, and his dissertation was entitled Co-recursively Enumerable Structures.^[6]

After obtaining his Ph.D.,^{[lower-alpha 1]} though before he had published a single paper,^[4] Remmel joined the faculty of the University of California, San Diego as an assistant professor, where he worked for his entire career.^[2] Remmel was noted for his successful publication record in two separate fields—logic, in which he published in mathematical logic; and combinatorics, where he published papers on algebraic combinatorics.^[6] He published over 20 papers in logic with Victor W. Marek,^[7] and Remmel's more prominent career in combinatorics included over 20 co-authored papers with Sergey Kitaev.^[4] A double issue of the Journal of Combinatorics^{[lower-alpha 2]} was published in his memory.^[8]

Remmel's work is highly cited in the fields of vector spaces, including computably enumerable sets and vector spaces.^{[lower-alpha 3]}